Question

Найдите сумму. а) 3 1/11 + 2 3/11; б) 6 5/7 + 9 1/7; в) 3 7/13 + 2 5/13.​

Answer 1

А)

$3 \frac{1}{11} + 2 \frac{3}{11} = 5 \frac{1 + 3}{11} = 5 \frac{4}{11}$

Б)

$6 \frac{5}{7} + 9 \frac{1}{7} = 15 \frac{5 + 1}{7} = 15 \frac{6}{7}$

В)

$3 \frac{7}{13 } + 2 \frac{5}{13} = 5 \frac{7 + 5}{13} = 5 \frac{12}{13}$