X:8/15 = 5/32 56/x = 16/21 63/88 :x = 54 /121 решите пж уравнения
Х:8/15=5/32 х=5/32*8/15 х=1/12 56/х=16/21 х=56:16/21 х=56*21/16 х=7/2=3 1/3 63/88:х=54/121 х=63/88:54/121 х=63/88*121/54 х=77/48 х=1 29/48