Question

алгебра 7 класс решите дробь 2 1/2×(2/15-3 5/6)+1/4=

Answer 1

1) 2/15 - 3 5/6 = 4/30 - 3 25/30 = -3 21/30 = -3 7/10
2) 2 1/2 * (-3 7/10) = 5/2 * (-37/10) = -37/4
3) -37/4 + 1/4 = -36/4 = -9