Question

найдите значение выражения 58+14+712 37+1114-221 1318-124-(2912+636)

Answer 1

58+14+712 =1 11/24
58+14=5/8+2/8=7/8
7/8+7/12=21/24+14/24=35/24=1 11/24

37+1114-221=1 5/42
3/7+11/14=6/14+11/14=17/14=1 3/14
1 3/14-2/21=17/14-2/21=51/42-4/42=47/42=1 5/42

1318-124-(2912+636)=1318-2 7/12=-1 65/72
29/12+6/36=87/36+6/36=93/36=2 21/36=2 7/12
1318-124=52/72-3/72=49/72
49/72-2 7/12=49/72-31/12=49/72-186/72=- 137/72=-1 65/72