How do you simplify 812+16?

1 Answer

56

Explanation:

We can do this in a couple of ways. The trick to this is that we need the denominators to be the same. (Remember that the denominator tells you how many pieces something is divided into - and so having 2 identical pizzas divided into 12 pieces for the one and 6 pieces into the other won't give us identically sized slices. We need to know that we are working with the same size!)

Let's do it one way - increase the 6 to a 12:

812+16

812+16(1)

812+16(22)

812+212

1012

2×52×6

(22)(56)

(1)(56)

56

We could also do it the other way and reduce the denominator 12 fraction to a 6 first:

812+16

2×42×6+16

(22)(46)+16

(1)(46)+16

46+16

56