Question

Вычислите:
1. (19 5/6 + 7 9/16) - ( 15  2/3 -  9  3/8)
2. (28 1/6 - 16  11/15) - (18  3/20  -14  2/3)

Answer 1

1)19 5/6 + 7 9/16 - 15 2/3 - 9 3/8 = 2 17/48
19 5/6 + 7 9/16 - 15 2/3 - 9 3/8 = 119/6 + 121/16 - 47/3 - 75/8 
НОК(6,16,3,8) = 48
 (119*8 + 121*3 - 47*16 - 75*6)/48 = (952 + 363 - 752 - 450)/48 = 113/48 = 2 17/48
2 17/48 = 2.3541666667