1 7/36÷(3/8+5/12) 17/36÷(7/12-5/9) ПОМОГИТЕ ПЖ ДАЮ 17 БАЛЛОВ!

Question

1 7/36÷(3/8+5/12)
17/36÷(7/12-5/9)
ПОМОГИТЕ ПЖ ДАЮ 17 БАЛЛОВ!

Answer 1

1) 1 7/36 : (3/8 + 5/12) = 46/36 : (9/24 + 10/24) = 46/36 : 19/24 = 46/36 * 24/19 = (43*24)/(36*16) = (43*2)/(3*19) = 86/57 = 1 29/57
2) 17/36 : (7/12 - 5/9) = 17/36 : (21/36 - 20/36) = 17/36 : 1/36 = 17/36 * 36/1 = 17/1 = 17