Вычислите: 1/2-1/4, 1/7*1/42, 3/18+1/2

Question

Вычислите: 1/2-1/4, 1/7*1/42, 3/18+1/2

Comments

1/2-1/4=2-1/4=1/4

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1/7•1/42=6•1/42=_6/42=1/7

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1/7•1/42=6•1/42=6/42=1/7. 3/18+1/2=3+8/18=11/18

Answer 1

1/2-1/4*1/42
по другому
2:1-4×1:42:1
ответ 1/4/42