Add 2/56 and 90/21
1st number: 2/56, 2nd number: 4 6/21
2/56 + 90/21 is 121/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
2/56 = 2 × 3/56 × 3 = 6/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
90/21 = 90 × 8/21 × 8 = 720/168 - Add the two like fractions:
6/168 + 720/168 = 6 + 720/168 = 726/168 - 726/168 simplified gives 121/28
- So, 2/56 + 90/21 = 121/28
In mixed form: 49/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/56+90/21 2/56+90/42 6/56+90/21 2/56+90/63 10/56+90/21 14/56+90/21