1.   ( 5/8 + 11/36) * 6/67    2.   3/8 * 5 + 4 1/6 * 2 1/10 - 9/20 * 6 .  памагите поже

1. 1) 5/8 + 11/36=20/36 + 11/36 = 31/362) 31/36 * 6/67 = 31/4022.1) 3/8 * 5 = 15/82) 4 1/6 * 2 1/10 = 25/6 * 21/10 =  105/123) 9/20 * 6 = 54/20 = 2,74) 15/8 + 105/12 = 60/36 + 315/36 = 375/365) 375/36 - 27/10 = 1875/180 - 486/180 = 1389/180 = 7 43/60