Add 81/84 and 10/56
81/84 + 10/56 is 8/7.
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,
81/84 = 81 × 2/84 × 2 = 162/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
10/56 = 10 × 3/56 × 3 = 30/168 - Add the two like fractions:
162/168 + 30/168 = 162 + 30/168 = 192/168 - 192/168 simplified gives 8/7
- So, 81/84 + 10/56 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/84+20/56 81/84+30/56 81/84+50/56 81/84+70/56