Question

найдите сумму чисел 15 7/20 и 3 11/15​

Answer 1

$15 \frac{7}{20} + 3\frac{11}{15} = \frac{307}{20} + \frac{56}{15} = \frac{921}{60} + \frac{224}{60} = \frac{1145}{60} = \frac{229}{12} = 19 \frac{1}{12}$