Add 2/21 and 14/18
2/21 + 14/18 is 55/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
2/21 = 2 × 6/21 × 6 = 12/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Add the two like fractions:
12/126 + 98/126 = 12 + 98/126 = 110/126 - 110/126 simplified gives 55/63
- So, 2/21 + 14/18 = 55/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+14/18 2/21+28/18 2/42+14/18 2/21+14/36 6/21+14/18 2/21+42/18 2/63+14/18 2/21+14/54 10/21+14/18 2/21+70/18 2/21+14/90 14/21+14/18 2/21+98/18