Add and Subtraction Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (the number of parts) and 'b' is the denominator (the total number of equal parts).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you subtract fractions with the same denominator?

Back

To subtract fractions with the same denominator, keep the denominator the same and subtract the numerators. For example, 3/5 - 1/5 = (3-1)/5 = 2/5.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is the first step in adding fractions with different denominators?

Back

The first step is to find a common denominator, which is a multiple of both denominators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator for 1/3 and 1/4?

Back

The least common denominator (LCD) of 3 and 4 is 12. Convert 1/3 to 4/12 and 1/4 to 3/12 before adding.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to add 1/3 and 1/4?

Back

Convert to a common denominator: 1/3 = 4/12 and 1/4 = 3/12. Then add: 4/12 + 3/12 = 7/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Tags

CCSS.3.NF.A.3C

Front

How do you convert an improper fraction to a mixed number?

Back

Divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator over the original denominator.

Front

What is the result of 5/8 - 1/4?

Back

Convert 1/4 to 2/8. Then, 5/8 - 2/8 = 3/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract 3/10 from 1/2?

Back

Convert 1/2 to 5/10. Then, 5/10 - 3/10 = 2/10, which simplifies to 1/5.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2