1) да
3m(2)/7m=3m/7
3m/7=3m/7
2) нет
4x(8)/16x(4)=x(2)/4
x(4)/4=x(2)/4
3)нет
2b/5c(3)=8b/20c(5)
2b/5c(3)=2b/5c(5)
4)да
8m(2)/9n=8m(5)/9nm(3)
8m(2)/9n=8m(2)/9n
1) да
3m(2)/7m=3m/7
3m/7=3m/7
2) нет
4x(8)/16x(4)=x(2)/4
x(4)/4=x(2)/4
3)нет
2b/5c(3)=8b/20c(5)
2b/5c(3)=2b/5c(5)
4)да
8m(2)/9n=8m(5)/9nm(3)
8m(2)/9n=8m(2)/9n