Упростите выражение: 1) 5/6m * 7/10n 2) 7/10a * 3 1/3b 3) 1 11/16x * 4y * 3 5/9z

Question

Упростите выражение:
1) 5/6m * 7/10n
2) 7/10a * 3 1/3b
3) 1 11/16x * 4y * 3 5/9z

Answer 1

1) 5/6 m * 7/10 n = 7/12 mn

2) 7/10a * 3 1/3 b = 7/10 a * 10/3 b = 7/3 ab = 2 1/3 ab

3) 1 11/16 x * 4y * 3 5/9 z = 27/16 x * 4y * 32/9 z = 24xyz  

Answer 2

1)
1/6 m * 7/2 n = 7/12 mn

2)
7/10 a * 10/3 b = 7/3 ab

3)27/16x *4y * 32/9z = 3x*4y*2z=24xyz