Question

1. Simplify:
a) 9/8-4/5
b) -7/12_-8/15
c) 7/42_8/21
d) -3/8_-1/16​

Answer 1

Answer:

9/8-4/5 -7/12-(-8/15)

45/40-32/40 (lcm) -7/12+8/15

13/40 ans -105/180+96/180

-9/180= -1/20ans

7/42-(-8/21) -3/8-(-1/16)

7/42+16/42 -3/8+1/16

13/42 ans -6/16+1/16

-5/16ans

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