Question

Представьте в виде дроби выражение

Answer 1

24. 1) =(4b +7a)/ab

2) =(9n -5) /mn

3) =(4*3 -2*11) /36xy =(12 -22) /36xy =(-10/36xy) =(-5/18xy)

4) = (10ab*5m +6b*2n -15a*7p) /(30a^2*b^2) =

=(50abm +12bn -105ap) /30a^2b^2


5) =(b(3a -4b) +8a^2 +4b^2)) /ab =

=(3ab -4b^2 +8a^2 +4b^2) /ab =

=(3ab +8a^2) /ab =a(2b +8a) /ab =(2b +8a)/b