yes you do, first you make the denominators the same, then you add the numerator after that you can regroup any "extras" into those whole numbers.
It can be but need not be.
If a decimal could be converted to a whole number, we wouldn't need decimals for anything. Or fractions either. The fact is: NO decimal, and no ordinary fraction, can be converted to a whole number. That's why we need them.
You need a common denominator for both.
Yeah banana
If every fraction could be turned into a whole number, then we could just get rid of fractions and everybody in school would be happy. We have fractions because we need them. Usually, you can't turn a fraction into a whole number.
Yes.
Yes.
When you are adding or subtracting fractions.
Find a common denamonator.
When you are adding or subtracting fractions.
Quite simply because you NEED fractions. Fractions exist everywhere whether you chose to acknowledge them or not.
If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.