Question

№1.

1) (3/7 + 4/7) - (7/20-3/20) =

2) (3/8+5/8) - (2/3+1/6) =

3)( 19/16 + 13/16)- (8/9 +5/27) =

4) (23/15 + 22/15) - ( 61/24 - 13/24) =

Answer 1

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