Question

1) 10-3/11 2) 2 2/15-4/15 3) 18 7/12+2 5/24( помогите пж завтра СОЧ)​

Answer 1

Ответ:

$1)10 - \frac{3}{11} = 9 \frac{11}{11} - \frac{3}{11} = 9 \frac{8}{11}$

$2)2 \frac{2}{15} - \frac{4}{15} = \frac{15 \times 2 + 2}{15} - \frac{4}{15} = \frac{32}{15} - \frac{4}{15} = \frac{28}{15} = 1 \frac{13}{15}$

$3)18 \frac{7}{12} + 2 \frac{5}{24} = \frac{12 \times 18 + 7}{12} + \frac{24 \times 2 + 5}{24} = \frac{223}{12} + \frac{53}{24} = \frac{223 \times 2}{12 \times 2} + \frac{53}{24} = \frac{446}{24} + \frac{53}{24} = \frac{499}{24} = 20 \frac{19}{24}$