6thG 15 Add/Subtract Fractions

Mixed Numbers to Improper Fractions

MAD

Multiply the Denominator and the Whole Number

Add the Numerator

Denominator stays the same

Drag and Drop

When changing a mixed number into an improper fraction you first ​

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the ​​

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by the ​

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. Then you ​take your answer and ​

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the ​

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.

Drag these tiles and drop them in the correct blank above

multiply

whole number

denominator

add

numerator

Multiple Choice

In an improper fraction, which term is larger?

• Numerator
• Bottom
• Not sure
• They are equal

Math Response

Convert this mixed number to an improper fraction.

FIRST Multiply the whole number and the denominator

SECOND Add the product and the old numerator to become a new numerator

REMEMBER Denominator stays the same

Type answer here

Correct Answer: \frac{13}{6}

Deg^°

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Multiple Choice

What kind of fraction is this?

• Mixed Fraction

• Improper Fraction

• Big Fraction

• Normal Fraction

Multiple Choice

What kind of fraction is this?

• Mixed Fraction (Mixed Number)

• Improper Fraction

• Normal Fraction

• Weird Fraction

Math Response

Write as an improper fraction.

Type answer here

Correct Answer: \frac{34}{8}

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​Adding fractions with like denominators

​If you are adding fractions with like denominators, all you need to do is add the numerators and keep the denominator the same.

Multiple Choice

• 5/14
• 3/7
• 5/7
• 5/14

​Subtracting fractions with like denominators

​If you are subtracting fractions with like denominators, all you need to do is subtract the numerators and keep the denominator the same.

A fraction is simplified if the numerator and denominator have no common factors. If a fraction is not simplified you need to divide.

Drag and Drop

A fraction is ​

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if the numerator and ​

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have no common factors. If a fraction is not simplified you need to ​

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.

Drag these tiles and drop them in the correct blank above

simplified

denominator

divide

Multiple Choice

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30
• 11
• 6
• 5

Multiple Choice

What number could be a common denominator for these three fractions?
1/2   and   1/3   and   1/4

• 9
• 8
• 12
• 6

Match

Match the following

• $$\frac{3}{4}$$  

• $$\frac{1}{4}$$  

• $$\frac{1}{5}$$  

• $$\frac{1}{10}$$  

• $$\frac{1}{2}$$  

9/12

2/8

3/15

3/30

5/10

• 9/12

• 2/8

• 3/15

• 3/30

• 5/10

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Math Response

What is the GCF of 4 and 8?

Type answer here

Correct Answer: 4

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Math Response

Convert this mixed number to an improper fraction.

FIRST Multiply the whole number and the denominator

SECOND Add the product and the old numerator to become a new numerator

REMEMBER Denominator stays the same

Type answer here

Correct Answer: \frac{3}{2}

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Math Response

Convert this mixed number to an improper fraction.

FIRST Multiply the whole number and the denominator

SECOND Add the product and the old numerator to become a new numerator

REMEMBER Denominator stays the same

Type answer here

Correct Answer: \frac{37}{10}

Deg^°

Rad

Math Response

THE LCM of 4 and 5 is...

Type answer here

Correct Answer: 20

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Math Response

What is the LCM of 8 and 24?

Type answer here

Correct Answer: 8

Deg^°

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Math Response

THE LCM of 15 and 5 is...

Type answer here

Correct Answer: 15

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Drag and Drop

When changing a whole number into a fraction, you put the whole number over a ​

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.

Drag these tiles and drop them in the correct blank above

1

2

0

5

100

​Review parts of a fraction:

​The numerator is the number on top.

​

​The denominator is the number on the bottom.

​Adding & Subtracting Mixed Numbers with like Denominators

​Do the same as you would if you were adding or subtracting fractions with like denominators.

Convert an improper fraction to a mixed number

Divide! The top number falls into the house. Make your remainder a fraction.

Multiple Choice

What is the sum of these fractions in lowest terms?

• 4/5
• 3/20
• 17/20
• 4/20

Multiple Choice

• 5/14
• 3/7
• 5/7
• 5/14

Multiple Choice

What is the least common denominator for 3 and 4?

• 6
• 4
• 3
• 12

Multiple Choice

What is the least common denominator for 7 and 2?

• 12
• 14
• 7
• 6

Multiple Choice

What MUST you have to add and subtract fractions?

• Numerators & Denominators

• The same Numerators

• Denominators that are Different

• Common Denominators

  ( THE SAME)

Math Response

Solve:
$$\frac{1}{6}+\frac{5}{12}=$$  

Type answer here

Correct Answer: \frac{7}{12}

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Math Response

​I can add and subtract fractions with like denominators.

$$\frac{1}{10}+\frac{2}{10}=$$  

Type answer here

Correct Answer: \frac{3}{10}

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Math Response

​I can add and subtract fractions with like denominators.

$$\frac{7}{8}-\frac{2}{8}=$$  

Type answer here

Correct Answer: \frac{5}{8}

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Math Response

I can add and subtracting positive fractions with unlike-denominators.

$$\frac{1}{4}+\frac{1}{2}=$$  

Type answer here

Correct Answer: \frac{3}{4}

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Multiple Choice

What is sum of these two fractions?

• 4/8

• 2/8

• 4/6

• 4/12

Math Response

$$\frac{12}{17\ }-\frac{5}{17}$$  

Type answer here

Correct Answer: \frac{7}{17}

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Multiple Choice

What is the Least Common Denominator?

$$\frac{1}{5}+\frac{2}{10}$$  

• 5

• 10

• 15

• 20