Сколько будет 1)7 целых 1\6-6,2 2)9 целых...

Question

Сколько будет 1)7 целых 1\6-6,2
2)9 целых 4\15-1,8
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Answer 1

     1  \5        2 \3                1*5 - 2*3                   5-6
7 -------  -  6 ------ = (7-6)+( --------------------) = 1 + ---------------- =
     6            10                       30                        30

= 1+ (-1/30) = 30/30 - 1/30 = -29/30

       4 \2            8 \3                  4*2 - 8*3                 8 - 24
9 ---------- - 1 ------------- = (9-1)+(------------------) = 8 + ----------------- =
     15              10                          30                       30
= 8 + 16/30 = 8 16/30 = 8 8/15