A)8/9*3/4-(5/6-1/4)= б)3/5+4/5*3/7+6/7=

Question

A)8/9*3/4-(5/6-1/4)= б)3/5+4/5*3/7+6/7=

Answer 1

А) =2/3-5/6+1/4=(8-10+3)/12=1/12

Comments

б) 3/5+12/35+6/7=(21+12+30)/35=63/35=1 целая 28/35

Answer 2

a)8/9*3/4-(5/6-1/4)= 24/36-(10/12-3/12)=24/36-7/12=24/36-14/36=10/36

Comments

9*4=36 , но не 32

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б)3/5+4/5*3/7+6/7=3/+12/35+6/7=21/35+12/35+6/7=33/35+30/35=63/35=1.8