21
You can find this out in any of the following ways: 1. Find a common denominator (multiplying the two denominators is one way - it need not be the LEAST common denominator). Convert the fractions to this common denominator. Then you can compare. 2. Use a calculator to convert the fractions to decimal, then compare. To convert to decimal, just divide the top part of the fraction by the bottom part.
1/2 = 3/6 1/3 = 2/6 so your common denominator would be 6
1
22/21 = 1 1/21. The common denominator is 21, so 5/7 = 15/21, and 1/3 = 7/21. Add 15/21 + 7/21 = 22/21. Then change to mixed number.
1 1/2
It is 10/21.
The LCD of 1/3 and 1/9 is 9.
I got 39/56 you have to multiply each fraction by its denominator (4/7 x 8/8 and 1/8 x 7/7) so that way you get a common denominator. then when you multiply them which is (32/56 and 7/56) you add them ultimately getting the answer 39/56. You have to remember that when you add fractions you have to have a common denominator.
You have to find a common denominator, and then add them - watch... 1/2+ 1/3 = common denominator would be 6 3/6+ 2/6=5/6 The answer is 5/6
The best common denominator is 1
The LCD of 3/16 and 1/3 is 48.
The LCD of 7/8 and 1/3 is 24.