Решите Методом 5-го класса!

1.
a) 3/4 * 5/7 = 15/28
б) 4/11 * 3/4 = 12/44 = 3/11
в) 5/7 * 14/19 = 10/19
г) 3/5 ^2 = 3/5 * 3/5 = 9/25
д) 4/5 : 3/7 = 4/5 * 7/3 = 28/15 = 1 13/15
е) 15/8 : 5/4 = 15/8 * 4/5 = 60/40 = 3/2 = 1 1/2
ж) 4/9 : 2 = 4/9 * 1/2 = 4/18 = 2/9
з) 6 : 3/5 = 6/1 * 5/3 = 30/3 = 10

2.
а) 1) 14/15 : 2/3 = 14/15 * 3/2 = 42/30 = 7/5
2) 2 * 7/5 = 14/5 = 2 4/5

б) 1) 12/11 : 3/4 = 12/11 * 4/3 = 48/33
2) 48/33 * 11/24 = 2/3

в) 1/2 * 2/3 * 3/4 * 4/5 = 1/5