Adding & Subtracting Mixed Numbers with Unlike Denominators

Addition:
Find Lowest Common Denominator & solve
1     5/7  +   14    1/2

• 15  1/14
• 15  6/21
• 15  17/21
• 15  17/14

Tags

CCSS.4.NF.A.2

Addition:
Find Lowest Common Denominator & solve
1   3/7      +       7   5/11 =

• 8   68/77
• 8   68/107
• 8   10/77
• 8    8/18

Tags

CCSS.4.NF.A.2

Addition:
Find Lowest Common Denominator & solve
4    1/2    +   14    6/12 =

• 18   7/14
• 18   12/12
• 18   24/24
• 18

Tags

CCSS.4.NF.A.2

Addition:
Find Lowest Common Denominator & solve
1    1/3   +    4    1/4 =

• 5    7/12
• 5    2/24
• 5    2/12
• 5    7/24

Tags

CCSS.4.NF.A.2

Addition:
Find Lowest Common Denominator & solve
8     4/5    +    9    1/10  =

• 18   5/15
• 17   5/10
• 17   9/20
• 17   9/10

Tags

CCSS.4.NF.A.2

 Subtraction:
Find Lowest Common Denominator & solve 
8    5/7    -    7    2/3 = 

• 1    3/4
• 1   1/21
• 1     1/24 
• 1    3/24

Tags

CCSS.4.NF.A.2

Subtraction:
Find Lowest Common Denominator & solve :
5    2/8   -   1    1/6 =

• 4     2/24
• 4     3/18
• 4    7/12
• 4    3/12

Tags

CCSS.4.NF.A.2

Subtraction:
Find Lowest Common Denominator & solve
8    6/9    -    3    2/5  =

• 6
• 4
• 5   12/45
• 5   4/60

Tags

CCSS.4.NF.A.2

Subtraction:
Find Lowest Common Denominator & solve
5    3/4     -    2    1/4  =

• 3    2/4
• 2     2/4
• 3    2/16
• 3    2/8

Tags

CCSS.4.NF.A.2

Word Problem:
Two cats, Fluffy and Oreo, met in the Park. Fluffy's tail is 3   1/3 of a meter long. Oreo's tail is 2   1/4 of a meter long.
How much Longer is Fluffy's tail than Oreo's tail?

• 5     7/12
• 1     1/12
• 1     2/7
• 5     2/12

Tags

CCSS.7.NS.A.1C