Вычислите -1 9/20-7/8+3/10

Question

Вычислите -1 9/20-7/8+3/10

Answer 1

1) -29/20 - 7/8 = - 58/40 -35/40 = - 93/40

2) - 93/40 + 3/10 = -93/40 + 12/40 = - 81/40 = -2 1/40

Answer 2

-1 9/20 -7/8 +3/10 = -29/20-7/8+3/10 = -58/40-35/40+12/40 = -81/40 = -2 1/40