Ответ Автор - DаShik 1) 15/18=5/624/30=4/528/32=7/845/75=3/575/300=1/4125/1000=1/82) 21/360=7/12035/700=1/2054/900=3/5024/600=1/2548/800=3/5075/1000=3/40