What is the answer?
#3-2/3-7/9#
3 Answers
Explanation:
To simplify this, we need to have denominators that are all the same (if you think about it in terms of pizza slices, a pizza slice from a pizza sliced into 9 pieces is far smaller than a slice from a pizza sliced into 3 slices). We can do that by using creative forms of the number 1:
And now we work this from left to right:
Explanation:
.
We need to do something that will give all three terms the same denominator. This common denominator has to be divisible by all three original denominators.
Because
Remember that
Explanation:
So we have
So to subtract or add two fractions, they have to have the denominator. In order to do that, find their least common multiple. Since
However, we also have the whole number
Because
And now we have
Hopefully this helped and made sense!