Add 20/18 and 63/84
1st number: 1 2/18, 2nd number: 63/84
20/18 + 63/84 is 67/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
20/18 = 20 × 14/18 × 14 = 280/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Add the two like fractions:
280/252 + 189/252 = 280 + 189/252 = 469/252 - 469/252 simplified gives 67/36
- So, 20/18 + 63/84 = 67/36
In mixed form: 131/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+63/84 20/36+63/84 60/18+63/84 20/54+63/84 20/90+63/84