12+85= \frac{12+8}{5}= 512+8=
Let's begin by multiplying the numerator:
12+8=20 12+8=20 12+8=20
We should obtain the fraction written below:
205 \frac{20}{5} 520
Let's now reduce the numerator and denominator by 5 and we should obtain the following result:
41=4 \frac{4}{1}=4 14=4
4 4 4