Adding And Subtracting Fractions Question Preview (ID: 26341)


Adding And Subtracting Fractions With Like And Unlike Denominators. TEACHERS: click here for quick copy question ID numbers.

When adding/subtracting fractions with LIKE denominators, you need to...
a) add/subtract their denominators
b) add/subtract their numerators
c) add/subtract both their numerators and denominators
d)

9/14 - 5/14
a) 14/28
b) 4/28
c) 4/14
d) 14/14

1/8 + 7/8
a) 8/8
b) -6/8
c) 8/16
d) -6/16

6/13 - 7/13
a) 1/13
b) 13/13
c) -1/13
d) -1/26

7/25 + 13/25
a) 20/25
b) 20/50
c) 6/25
d) 6/50

17/24 - 9/24
a) 26/24
b) 8/48
c) -8/24
d) 8/24

When adding/subtracting fractions with unlike denominators you must first find their...
a) LCF (least common factor)
b) LCM (least common multiple)
c) favorite restuarant
d)

What is the LCM of 4 and 3?
a) 7
b) 4
c) 3
d) 12

3/4 + 2/3
a) 17/12
b) 5/12
c) 5/43
d) 32/43

What is the LCM of 15 and 5?
a) 5
b) 1
c) 15
d) 30

13/15 - 1/5
a) 12/15
b) 14/5
c) 10/5
d) 10 /15

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