Решите плиз.Номер 1191.Только 2,4,6

Question

Решите плиз.Номер 1191.Только 2,4,6

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Answer 1

.....вот......^_^......

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Answer 2

2)  1.1/4*2/5=1/2
1/2-1/3=(3-2)/6=1/6
4)  (5/6)/(1/3)=2/5
2/5+1.3/8=(16+23)/40=39/40
6)  (2.1/3)/(1.5/9)=3/2
3/2-5/6=(9-5)/6=4/6=2/3