Вычислите: (-3 9/25)*1 17/63+1 19/45*1 3/32

Question

Вычислите: (-3 9/25)*1 17/63+1 19/45*1 3/32

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Answer 1

1)(-84/25)*80/63=84*80/25*63=6720/1575=1344/315
2)64/45*35/32=64*35/45*32=2240/1440=224/144=112/72=56/36=16/9
3)1344/315+16/9=1344+560/315=1904/315=6 14/315

Comments

Чё-то я не уверена...