Add 72/84 and 63/36
1st number: 72/84, 2nd number: 1 27/36
72/84 + 63/36 is 73/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
72/84 = 72 × 3/84 × 3 = 216/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
63/36 = 63 × 7/36 × 7 = 441/252 - Add the two like fractions:
216/252 + 441/252 = 216 + 441/252 = 657/252 - 657/252 simplified gives 73/28
- So, 72/84 + 63/36 = 73/28
In mixed form: 217/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/84+63/72