Вычислите: 5/6 - (-1(целая)11/18 - 7/12); 27/28 : 9/14 + 2 (целых) 5/8 × (-6/7)

Question

Вычислите: 5/6 - (-1(целая)11/18 - 7/12); 27/28 : 9/14 + 2 (целых) 5/8 × (-6/7)

Answer 1

1)
5/6-(-1 11/18 - 7/12) = 5/6 + 29/18 + 7/12 = 30/36 + 58/36 + 21/36=109/36 = 3 1/36
2)
27/28: 9/14 + 2 5/8 * (-6/7) = 27/28 * 14/9 + 21/8*(-6/7)= 3/2- 3*3/4= 3/2 - 9/4= 6/4 - 9/4= -3/4