Question

Найдите значение выражения (6 1/7 -3 17/36)*2,5-4 1/3:0,65

Answer 1

            ......................=5/504

1)   6 1/7 - 3 17/36=6 36/252 - 3 119/252=2 169/252
2)   2 169/252 * 2,5=2 169/252 * 5/2=2 * 5/2+169/252 * 5/2=5+845/504=6 341/504
3)   4 1/3 :0,65=13/3 * 20/13=20/3=6 2/3
4)   6 341/504 - 6 2/3=341/504 - 2/3=341/504 - 336/504=5/504