xakimovnurmuhammad86 (6dm+3m72cm):3-45cm•3

zuhrasalimzan

Ответ:

6/10=3/5

3/15=1/5

21/35=3/5

28/42=14/21=2/3

36/48=6/7

63/81=7/9

84/154=42/77

625/1000=25/40=5/8