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