1 3/7 * 1 1/4 = 10/7 * 5/4 = 10*5 / (7*4)=50/28=1 22/28 = 1 11/14
ответ. 1 целая 11/14
=10/7*5/4=50/28=1 22/28
1 3/7 * 1 1/4 = 10/7 * 5/4 = 10*5 / (7*4)=50/28=1 22/28 = 1 11/14
ответ. 1 целая 11/14
=10/7*5/4=50/28=1 22/28