Add 72/36 and 63/84
1st number: 2 0/36, 2nd number: 63/84
72/36 + 63/84 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
72/36 = 72 × 7/36 × 7 = 504/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Add the two like fractions:
504/252 + 189/252 = 504 + 189/252 = 693/252 - 693/252 simplified gives 11/4
- So, 72/36 + 63/84 = 11/4
In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: