Пж-та Решите : ( 45 7/9 - 2 3/8 ) - ( 5 5/6 + 6 3/4 ) + ( 10 2/3 - 5 5/8 ) ОЧЕНЬ НАДО!

Question

Пж-та Решите : ( 45 7/9 - 2 3/8 ) - ( 5 5/6 + 6 3/4 ) + ( 10 2/3 - 5 5/8 ) ОЧЕНЬ НАДО!

Answer 1

1) 45 7/9 - 2 3/8 = 412/9 - 19/8 = (3296-171)/72 = 3125/72;
2) 5 5/6 + 6 3/4 = 35/6 + 27/4 = (70+81)/12 = 151/12;
3) 10 2/3 - 5 5/8 = 32/3 - 45 /8 = (256 - 135)/24 = 121/24;
4) 3125/72 - 151/12 = (3125 - 906)/72 = 2219/72;
5) 2219/72 + 121/24 = (2219+363)/72 = 2582/72 = 1291/36 = 35 31/36.
Ответ: 35 31/36. 

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