Question

162 номер пж подробно

Answer 1

5/6*9/15:3/8=3/2:3/8=3/2*8/3=4
5/12+2/3+1/9=15/36+24/36+4/36=43/36=1 7/36

Answer 2

5/6 * 9/15 : 3/8
5/(2*3) * (3*3)/(3*5) * 8/3
5/(2*3) * 3/5 * 8/3
(5*3)/(5*2*3) * 8/3
1/2 * (2*4)/3
2*4 / 2*3
4/3 = 1 1/3

5/12 + 2/3 + 1/9 приводим к общему знаменателю 36
3*5 / 36 + 2*12 / 36 + 1*4 / 36
15/36 + 24/36 + 4/36
43/36 = 1 7/36