Add 1/4 and 21/35
1/4 + 21/35 is 17/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
1/4 = 1 × 35/4 × 35 = 35/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
21/35 = 21 × 4/35 × 4 = 84/140 - Add the two like fractions:
35/140 + 84/140 = 35 + 84/140 = 119/140 - 119/140 simplified gives 17/20
- So, 1/4 + 21/35 = 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4+21/35 1/4+42/35 1/8+21/35 1/4+21/70 3/4+21/35 1/4+63/35 1/12+21/35 5/4+21/35 1/20+21/35 7/4+21/35 1/28+21/35