(a+b):(3/4)=? (a+b):(3/4)=\text{?} (a+b):(3/4)=?
We begin by writing the exercise as a fraction:
(a+b):34= (a+b):\frac{3}{4}= (a+b):43=
We then write the fraction in reverse order for the purpose of obtaining a multiplication exercise:
(a+b)×43= (a+b)\times\frac{4}{3}= (a+b)×34=
Finally we obtain the following result:
43(a+b) \frac{4}{3}(a+b) 34(a+b)