Решите уравнение:1 8/13:x=7/26
x·5/6=5/33

1 8/13:x=7/2621/13:х=7/26х=21/13:7/26=21/13*26/7=3/13*26/1=3/1*2/1=6x·5/6=5/33х=5/33:5/6=5/33*6/5=1/33*6/1=1/11*2/1=2/11