Question

14 целых 1/6-(8целых 9/10-5целых 2/3)

Answer 1

1) 8 9/10 - 5 2/3 = 8 27/30- 5 20/30 = 3 7/30
НОК (10; 3) = 30
10 - 10, 20, 30.
2) 14 1/6 - 3 7/30 = 14 5/30 - 3 7/30 = 11 5/30 - 7/30 = 10 28/30 = 10 14/15
НОК (6; 30) = 30
30 - 30.
Ответ. 10 целых 14/15

Answer 2

$14 \frac{1}{6} - (8 \frac{9}{10} - 5 \frac{2}{3} ) = \frac{85}{6} - ($

$\frac{89}{10} - \frac{17}{3} ) = \frac{85}{6} - \frac{89 \times 3 - 17 \times 10}{30} =$

$\frac{85}{6} - \frac{267 - 170}{30} = \frac{85}{6} - \frac{97}{30} =$

$\frac{85 \times 5 - 97 \times 1}{30} = \frac{328}{30} = \frac{164}{15} = 10 \frac{14}{15}$