Задание 1. Найдите значение выражения 3) (5/26 - 3/25) * 13/2; √6 * (11/12 + 11/20) * 15/8; √9 * (3/1 - 1/10); (6/4 + 1/9)

1. (5/26 - 3/25) * 13/2 = (125/650 - 78/650) * 13/2 = 47/650 * 13/2 = 47/100 = 0.47

2. √6 * (11/12 + 11/20) * 15/8 = √6 * (55/60 + 33/60) * 15/8 = √6 * 88/60 * 15/8 = √6 * 22/15 * 15/8 = √6 * 22/8 = √6 * 11/4

3. √9 * (3/1 - 1/10) = 3 * (30/10 - 1/10) = 3 * 29/10 = 87/10 = 8.7

4. (6/4 + 1/9) = (3/2 + 1/9) = (27/18 + 2/18) = 29/18