Найдите значения выражения: а) 5/34 - 7/51, б) (11/12-0,75)+1/16 в) 4 2/3 + 1 3/14 -2 5/21, г) 7 - 4 3/4 - 1 2/3

А) 5/34 - 7/51 = 15/102 - 14/102 = 1/102 б) (11/12 - 0,75) + 1/16 = 11/48 1) 11/12 - 0,75 = 11/12 - 3/4 = 11/12 - 9/12 = 2/12 = 1/6 2) 1/6 + 1/16 = 8/48 + 3/48 = 11/48  в) 4 2/3 + 1 3/14 - 2 5/21 = 3 целых 9/14 1) 4 2/3 + 1 3/14 = 4 28/42 + 1 9/42 = 5 37/42 2) 5 37/42 - 2 5/21 = 5 37/42 - 2 10/42 = 3 27/42 = 3 9/14 г) 7 - 4 3/4 - 1 2/3 = 7/12 1) 7 - 4 3/4 = 6 4/4 - 4 3/4 = 2 1/4 2) 2 1/4 - 1 2/3 = 2 3/12 - 1 8/12 = 1 15/12 - 1 8/12 = 7/12

53172= 5*10000+3*1000+1*100+7*10+2

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200   8,48
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Калькулятор?
= 959 121 622