Add 9/18 and 21/14
1st number: 9/18, 2nd number: 1 7/14
9/18 + 21/14 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
9/18 = 9 × 7/18 × 7 = 63/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
21/14 = 21 × 9/14 × 9 = 189/126 - Add the two like fractions:
63/126 + 189/126 = 63 + 189/126 = 252/126 - 252/126 simplified gives 2/1
- So, 9/18 + 21/14 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+42/14 9/36+21/14 9/18+21/28 27/18+21/14 9/18+63/14 9/54+21/14 9/18+21/42 45/18+21/14 9/90+21/14 9/18+21/70 63/18+21/14 9/18+21/98