Add 21/28 and 10/36
21/28 + 10/36 is 37/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
21/28 = 21 × 9/28 × 9 = 189/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
10/36 = 10 × 7/36 × 7 = 70/252 - Add the two like fractions:
189/252 + 70/252 = 189 + 70/252 = 259/252 - 259/252 simplified gives 37/36
- So, 21/28 + 10/36 = 37/36
In mixed form: 11/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28+10/36 21/28+20/36 21/56+10/36 21/28+10/72 63/28+10/36 21/28+30/36 21/84+10/36 21/28+50/36 21/28+70/36