12a/(7x⋅4b)=? 12a/(7x\cdot4b)=\text{?} 12a/(7x⋅4b)=?
Let's begin by writing the exercise as a fraction:
12a7x×4b= \frac{12a}{7x\times4b}= 7x×4b12a=
Next we'll factor the numerator of the fraction into a smaller multiplication exercise:
4×3a7x×4b= \frac{4\times3a}{7x\times4b}= 7x×4b4×3a=
Let's now reduce the 4 in both the numerator and denominator of the fraction:
3a7xb \frac{3a}{7xb} 7xb3a