You'll need to get common denominators for these fractions.
Example:
4/9 +1/3
4/9 + 3/9 = 7/9
We'll be glad to check your answers.
4/9 +1/3
7/8 + 1/16
9/10 + 1/15
11/12-7/12
4/5 -2/5
3/8-2/8
7/8-1/16
5/8-1/3
5/7-1/3
4 answers
ok but how do you find the common denominator?
Find the smallest number that the two denominators go into evenly.
Example:
7/8 + 1/16
16 is the common denominator because 16 is the smallest number divisible by 8 and 16.
16/8 = 2
Multiply the numerator by 2
7/8 = 14/16
Example:
7/8 + 1/16
16 is the common denominator because 16 is the smallest number divisible by 8 and 16.
16/8 = 2
Multiply the numerator by 2
7/8 = 14/16
This site also explains it.
http://aaaknow.com/fra66kx2.htm
http://aaaknow.com/fra66kx2.htm