Question

6 целых 3/4 : 9 + 24 : 6/7 - 1/9 : 4 /21 / 53 целых 2/3 -22 целых 14/15 : 2 целых 2/3

Answer 1

$frac{6 frac{3}{4}:9+24: frac{6}{7}- frac{1}{9} : frac{4}{21} }{53 frac{2}{3}-22 frac{14}{15} :2 frac{2}{3} } = frac{52}{85}$

1)   6 3/4:9=27/4 * 1/9=3/4
2)   24:6/7=24 * 7/6=28
3)   1/9:4/21=1/9 * 21/4=7/12
4)   3/4+28 - 7/12=28 9/12 - 7/12=28 2/12=28 1/6
5)   22 14/15:2 2/3=345/15 * 3/8=69/8=8 5/8
6)   53 2/3 - 8 5/8=53 16/24 - 8 15/24=45 1/24
7)   28 1/6 : 45 1/24=169/6 * 24/1105=52/85