Add 14/18 and 27/21
1st number: 14/18, 2nd number: 1 6/21
14/18 + 27/21 is 130/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
27/21 = 27 × 6/21 × 6 = 162/126 - Add the two like fractions:
98/126 + 162/126 = 98 + 162/126 = 260/126 - 260/126 simplified gives 130/63
- So, 14/18 + 27/21 = 130/63
In mixed form: 24/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18+27/21 14/18+54/21 14/36+27/21 14/18+27/42 42/18+27/21 14/18+81/21 14/54+27/21 14/18+27/63 70/18+27/21 14/90+27/21 98/18+27/21