3/4:5/6+2 1/2*2/5-1:1 1/6

Question

3/4:5/6+2 1/2*2/5-1:1 1/6

Answer 1

1)3/4:5/6=3/4*6/5=9/10
2)2 1/2*2/5=5/2*2/5=1
3)1:1 1/6=1:7/6=1/1*6/7=6/7
4)9/10+1=1 9/10
5)1 9/10-6/7=19/10-6/7=133/70-60/70=73/70=1 3/70

Comments

13/70 или 1 3/70 ?

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1 целая 3/70

Answer 2

Пришли фото, а то так не понятно