Add 14/5 and 21/7
1st number: 2 4/5, 2nd number: 3 0/7
14/5 + 21/7 is 29/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
14/5 = 14 × 7/5 × 7 = 98/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
21/7 = 21 × 5/7 × 5 = 105/35 - Add the two like fractions:
98/35 + 105/35 = 98 + 105/35 = 203/35 - 203/35 simplified gives 29/5
- So, 14/5 + 21/7 = 29/5
In mixed form: 54/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/5+21/7 14/5+42/7 14/10+21/7 14/5+21/14 42/5+21/7 14/5+63/7 14/15+21/7 70/5+21/7 14/25+21/7 14/5+21/35 98/5+21/7 14/35+21/7 14/5+21/49