Question

Simplify:
1. 3/7 + 1/21 -1/14
2. 1/2 - 1/4 + 5/8
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Answer 1

Answer:

1) 3/7 +1/21 -1/14

3×6/7×6 +1×2/21×2 -1×3/14×3

18/42 +2/42 -3/42

18+2-3/42

17/42

2) 1/2 -1/4 +5/8

1×4/2×4 -1×2/4×2 +5/8

4/8 -2/8 +5/8

4-2+5/8

7/8