Add 8/18 and 63/84
8/18 + 63/84 is 43/36.
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,
8/18 = 8 × 14/18 × 14 = 112/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Add the two like fractions:
112/252 + 189/252 = 112 + 189/252 = 301/252 - 301/252 simplified gives 43/36
- So, 8/18 + 63/84 = 43/36
In mixed form: 17/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+63/84 8/36+63/84 24/18+63/84 8/54+63/84 40/18+63/84 8/90+63/84 56/18+63/84