0
If the denominators are not the same then yes.
If the denominators are the same you can simply add the numerators:
1/5 + 2/5 = 3/5
because the denominators are all the same, and 1 + 2 = 3.
If the denominators are different, simply adding the numerators will give the wrong answer:
1/5 + 2/3 <> 3/5 or 3/3.
Instead, find the Least Common Multiple of the denominators (15 in this case) and convert both fractions to that denominator. Then you can go back to simply adding the numerators.
1/5 = 3/15
2/3 = 10/15
3/15 + 10/15 = 13/15
because 3 + 10 = 13.
Still curious? Ask our experts.
Chat with our AI personalities
Steve
Professor
EzraAdd your answer:
Earn +20 pts
How do you minnous fractions?
Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.
When adding or subtracting fractions do you change the numerator?
you subtract the numerator but the denominator stays the same.
Do you need a common denominator for dividing fractions?
No only when adding or subtracting fractions a common denominator is needed
Before adding or subtracting Why are fractions turned into like fractions?
They have to have the same denominator.
Do you need common denominator when adding fractions?
Yes.
