Add 28/56 and 10/84
28/56 + 10/84 is 13/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
28/56 = 28 × 3/56 × 3 = 84/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
10/84 = 10 × 2/84 × 2 = 20/168 - Add the two like fractions:
84/168 + 20/168 = 84 + 20/168 = 104/168 - 104/168 simplified gives 13/21
- So, 28/56 + 10/84 = 13/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/56+20/84 84/56+10/84 28/56+30/84 28/56+50/84 28/56+70/84