Asked by Kim
How do you add fractions with different denominators? Thanks if you help :)
Answers
Answered by
Ms. Sue
You must either
change the fractions to equivalent fractions with a common denominator
or
change the factions to equivalent decimals.
change the fractions to equivalent fractions with a common denominator
or
change the factions to equivalent decimals.
Answered by
Bosnian
In google type :
add fractions with different denominators
You wil find many, many sites.
add fractions with different denominators
You wil find many, many sites.
Answered by
Steve
can't do it. Fractions with different denominators are different animals. Think of the denominator as a unit. A half is not the same as a third, just as apples are not oranges.
So, in order to add them, you need to convert them into the same units. To add 2/3 + 1/2, you have to make them somehow the same kind of thing.
If you cut a pie into 6 pieces, two of those pieces make 1/3, and 3 of them make 1/2. So, to do the addition, change things up so that
2/3 + 1/2
= 4/6 + 3/6
Now everything is the same kind of object: sixths
Now you can add them up
4/6+3/6 = 7/6 = 1 1/6
So, learn about something called the Lowest Common Denominator. To add fractions with different denominators, convert them so they are all multiples of the LCD. Then they can be added.
2/7 + 3/5 + 1/3
= 30/105 + 63/105 + 35/105
= 128/105
So, in order to add them, you need to convert them into the same units. To add 2/3 + 1/2, you have to make them somehow the same kind of thing.
If you cut a pie into 6 pieces, two of those pieces make 1/3, and 3 of them make 1/2. So, to do the addition, change things up so that
2/3 + 1/2
= 4/6 + 3/6
Now everything is the same kind of object: sixths
Now you can add them up
4/6+3/6 = 7/6 = 1 1/6
So, learn about something called the Lowest Common Denominator. To add fractions with different denominators, convert them so they are all multiples of the LCD. Then they can be added.
2/7 + 3/5 + 1/3
= 30/105 + 63/105 + 35/105
= 128/105
Answered by
Anonymous
Don't think about to much to much baby
Answered by
Jenna
Adding fractions is simple I will have this as a blog