1. Вычислите: 2) $1\frac{9}{12}+\frac{3}{12}$; 2) $7-4\frac{32}{54}$; 3) $15\frac{23}{28}-11\frac{24}{28}$.

Question

Вопрос: $Фото задания: 1. Вычислите: 2) $1\frac{9}{12}+\frac{3}{12}$; 2) $7-4\frac{32}{54}$; 3) $15\frac{23}{28}-11\frac{24}{28}$.$ Фото задания

Accepted Answer

2) $1\frac{9}{12}+\frac{3}{12}=1+\frac{12}{12}=2$.

2) $7-4\frac{32}{54}=7-4\frac{16}{27}=2\frac{11}{27}$.

3) $15\frac{23}{28}-11\frac{24}{28}=14\frac{51}{28}-11\frac{24}{28}=3\frac{27}{28}$.

Ответ: 2; $2\frac{11}{27}$; $3\frac{27}{28}$.

1. Вычислите: 2) \(1\frac{9}{12}+\frac{3}{12}\); 2) \(7-4\frac{32}{54}\); 3) \(15\frac{23}{28}-11\frac{24}{28}\).