Add 35/36 and 54/21
1st number: 35/36, 2nd number: 2 12/21
35/36 + 54/21 is 893/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
35/36 = 35 × 7/36 × 7 = 245/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
54/21 = 54 × 12/21 × 12 = 648/252 - Add the two like fractions:
245/252 + 648/252 = 245 + 648/252 = 893/252 - So, 35/36 + 54/21 = 893/252
In mixed form: 3137/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36+54/21 35/72+54/21 35/36+54/42 35/36+54/63