Question

Вычислите 1)13/24 + 7/10
2)1(целая) 4/15 + 3(целых) 7/25
3)9(целых) 11/12 - 5(целых) 3/8

Answer 1

$\frac{13}{24} + \frac{7}{10} = \frac{65 + 84}{120} = \frac{149}{120} = 1 \times \frac{29}{120}$
$1 \times \frac{4}{15} + 3 \times \frac{7}{25} = \frac{4}{15 } + \frac{21}{25} = \frac{83}{75} = 1 \times \frac{8}{75}$
$9 \times \frac{11}{12} - 5 \times \frac{3}{8} = \frac{33}{4} - \frac{15}{8} = \frac{51}{8} = 6 \times \frac{3}{8}$

Answer 2

1. 149/120
2. 83/75
3. 51/8