Add 1/3 and 21/35
1/3 + 21/35 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 3 × 35 = 105,
1/3 = 1 × 35/3 × 35 = 35/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
21/35 = 21 × 3/35 × 3 = 63/105 - Add the two like fractions:
35/105 + 63/105 = 35 + 63/105 = 98/105 - 98/105 simplified gives 14/15
- So, 1/3 + 21/35 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3+21/35 1/3+42/35 1/6+21/35 1/3+21/70 1/3+63/35 1/9+21/35 5/3+21/35 1/15+21/35 7/3+21/35 1/21+21/35