Add 9/18 and 63/84
9/18 + 63/84 is 5/4.
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,
9/18 = 9 × 14/18 × 14 = 126/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
63/84 = 63 × 3/84 × 3 = 189/252 - Add the two like fractions:
126/252 + 189/252 = 126 + 189/252 = 315/252 - 315/252 simplified gives 5/4
- So, 9/18 + 63/84 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/36+63/84 27/18+63/84 9/54+63/84 45/18+63/84 9/90+63/84 63/18+63/84