Add & Subtract Fractions & Mixed Numbers

• Subtract the numerators first, then subtract the denominators

• Write an equivalent fraction for 3/7 with 14 as the new denominator. Subtract only the numerators.

• Write equivalent fractions for both fractions with 28 as the denominator. Then subtract the numerators and denominators separately.

• Write an equivalent fraction for 2/3 with 7 as the new denominator. Then subtract only the numerators.

Tags

CCSS.MATH.CONTENT.5.NF.A.2

Sarah wrote the following problem on the board:

1/5 + 4/12

What is the least common denominator you could use to solve Sarah's problem?

• 24

• 5

• 12

• 60

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Susan is making trail mix. She uses 1/7 pounds of peanuts and 2/3 pounds of M&M's. How many peanuts and M&M's does Susan put in her trail mix?

Mathematical Equivalence

ON

Tags

CCSS.MATH.CONTENT.5.NF.A.2

1/8 + 2/6 = (a)  

• 3/48

• 3/14

• 11/24
• 5/24

Tags

CCSS.7.NS.A.1C

You need  8/9 pounds of fruits to make a  pudding. Sam has  5/12 pounds of fruits.
How  much more does he need to make the pudding? 

Mathematical Equivalence

ON

Tags

CCSS.MATH.CONTENT.5.NF.A.2

8/9 - 1/3 =  (a)  

• 7/6
• 5/9
• 2/3
• 8/27

Tags

CCSS.MATH.CONTENT.5.NF.A.1

Tags

CCSS.MATH.CONTENT.5.NF.A.2

Tags

CCSS.MATH.CONTENT.5.NF.A.1

• 6

• 7

Tags

CCSS.MATH.CONTENT.5.NF.A.1

Anna practices the piano for 4/6 hours after school and Camryn practices for 1/2 hour. Which equation could be used to find out how many more hours Anna practices than Camryn?

• 4/6 - 3/6 = 1/6

• 4/6 - 1/2 = 3/4

• 4/6 - 1/6 = 3/6

• 4/6 + 3/6 = 7/6

Tags

CCSS.MATH.CONTENT.5.NF.A.2