а)11/35и7/45 11/35*9=99/3157/45*7=49/315б)7/10и5/14 7/10*7=49/705/14*5=25/70в)3/20и1/16 3/20*4=12/801/16*5=5/80г)2/15и4/272/15*9=18/1354/27*5=20/135д)5/42и3/565/42*4=20/1683/56*3=9/168е)29/60и109/12629/60*21=609/1260109/126*10=1090/1260ё)139/270и109/126 139/270*7=973/1890109/126*15=1635/1890ж)139/270и71/450139/270*5=695/135071/450*3=213/1350з)17/104и59/33817/104*13=221/135259/338*4=236/1352