3/4 : 2/3, 1/3 : (3/4+2/3), (1/3+1/2):(3/7-2/5)
8 12/15+ 5 8/10, 4/15+4/8+4/7+31/56, 1/9+3/16+3/9-2/9
3/8 :7/16, 4/31:7/8

Предыдущий
вопрос Следующий
вопрос

1/3 : (3/4+2/3) = 1/3 : (9/12 + 8/12) = 1/3 : 17/12 = 4/12 : 17/12 = 4/17

(1/3+1/2):(3/7-2/5) = (2/6 + 3/6) : (15/35 - 14/35) = 5/6 : 1/35 = 5/6 * 35/1 = 175/6

8 12/15 + 5 8/10 = 8 4/5 + 5 4/5 = 13 4/5

4/15 + 4/8 + 4/7 + 31/56 = 149/105

1/9 + 3/16 + 3/9 - 2/9 = 21/48 = 7/16

3/8 : 7/16 = 3/8 * 16/7 = 6/7

4/31 : 7/8 = 32/217