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МатематикаВопрос:
7 15/20 + 11 12/50 =
Ответ:
7 15/20 + 11 12/50 = 7 3/4 + 11 6/25 = 31/4 + 281/25 = (31 * 25)/(4 * 25) + (281 * 4)/(25 * 4) = 775/100 + 1124/100 = 1899/100 = 18 99/100
Ответ: 18 99/100
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