Найдите значение выражения: 1 3/22 * 2 14/15 - (1 5/8 + 2 1/8 * 11/17) * 3/7;

Question

Найдите значение выражения: 1 3/22

* 2 14/15 - (1 5/8 + 2 1/8 * 11/17) * 3/7;

Answer 1

1 3/22×2 14/15-(15 5/8+2 1/8×11/17)×3/7=
= -3 20/21
1. 1 3/22×2 14/15=25/22×44/15=10/3=3 1/3
2. 2 1/8×11/17=17/8×11/17 =11/8=1 3/8
3. 15 5/8+1 3/8=16 8/8=17
4. 17×3/7=51/7=7 2/7
5. 3 1/3-7 2/7= -4 (1/3-2/7)=-4 (1/21)= -3 20/21