Add/Subtract 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 (part) and 'b' is the denominator (whole).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

What does it mean to add fractions?

Back

Adding fractions means combining the parts represented by the fractions. To add fractions with different denominators, find a common denominator first.

Tags

CCSS.4.NF.B.3A

Front

What does it mean to subtract fractions?

Back

Subtracting fractions means finding the difference between the parts represented by the fractions. Like addition, ensure the fractions have a common denominator before subtracting.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find the least common denominator (LCD) for 1/3 and 3/4?

Back

The least common denominator for 1/3 and 3/4 is 12.

Front

If John did 3/8 of his homework and Kate did 5/7, how do you find out how much more Kate did?

Back

You subtract John's fraction from Kate's: 5/7 - 3/8.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the sum of 4/9 and 2/9?

Back

The sum is 6/9, which simplifies to 2/3.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

How do you convert 6/8 to a simpler form?

Back

6/8 simplifies to 3/4 by dividing both the numerator and denominator by 2.

Front

What is the difference between 1/4 and 6/8?

Back

1/4 is equivalent to 2/8, so the difference is 6/8 - 2/8 = 4/8, which simplifies to 1/2.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

If Mr. Miller cut 3 1/2 inches from a 7 3/4 inch board, how do you find the remaining length?

Back

You subtract: 7 3/4 - 3 1/2.

Tags

CCSS.7.NS.A.1C