Question

2\3+5/27*9/10
4/13*1 7/18*26/15
3 1/2*12 4/5*2/7

Answer 1

Пошаговое объяснение:

№1

1) 5/27 * 9/10 = 1/3 * 1/2 = 1/6

2) 2/3 + 1/6 = 4/6 + 1/6 = 5/6

№2

4/13 * 1 7/18 * 26/15 = 4/13 * 25/18 * 26/15 =

4/1 * 25/18 * 2/15 = 4/1 * 5/9 * 1/3 = 20/27

№3

3 1/2 * 12 4/5 * 2/7 = 7/2 * 12 4/5 * 2/7 =

1/1 * 12 4/5 * 1/1 = 12 4/5