Question

Помогите номер 766. Заранее спасибо!

Answer 1

б
$frac{1}{2}$
$frac{1}{4}$
$frac{1}{4}$
$frac{1}{7}$
в
$frac{1}{4}$
$frac{1}{3}$
$frac{3}{7}$
$frac{9}{20}$

Answer 2

Б) 4/8=1/2; 9/36=1/4; 7/28=1/4; 5/35=1/7
В) 2/8=1/4; 8/24=1/3; 12/28=3/7; 45/100=9/20
Г) 25/35=5/7; 45/54=5/6; 8/400=1/50; 32/256=1/8
Д) 12/18=2/3; 18/20=9/10; 20/24=5/6; 24/30=4/5
Е) 56/49=8/7; 40/32=5/4; 48/36=4/3; 28/21=4/3
Ж) 21/56=3/8; 144/120=6/5; 156/128=39/32; 396/240=33/20