Add/Subtract Fractions Unlike Denominators

Front

What must you have to add and subtract fractions?

Back

Common denominators

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

7/10 - 1/2 = _____ in simplest form

Back

1/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Tim did 1/12 of a load of laundry on Sunday and 1/4 of a load of laundry on Saturday. What fraction of laundry did Tim do in total?

Back

1/3 loads done

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

1/3 + 5/12 = ?

Back

3/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

2/3 + 1/2 = ?

Back

7/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions.

Front

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

Back

The least common multiple (LCM) of 4 and 3 is 12, so the common denominator is 12.

Front

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

Back

Find a common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

Convert 1/4 to a fraction with a denominator of 12.

Back

1/4 = 3/12

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

Convert 1/3 to a fraction with a denominator of 12.

Back

1/3 = 4/12

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1