Add 1/4 and 21/3
1st number: 1/4, 2nd number: 7 0/3
1/4 + 21/3 is 29/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 3 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
1/4 = 1 × 3/4 × 3 = 3/12 - Likewise, for the 2nd fraction, since 3 × 4 = 12,
21/3 = 21 × 4/3 × 4 = 84/12 - Add the two like fractions:
3/12 + 84/12 = 3 + 84/12 = 87/12 - 87/12 simplified gives 29/4
- So, 1/4 + 21/3 = 29/4
In mixed form: 71/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4+21/3 1/4+42/3 1/8+21/3 1/4+21/6 3/4+21/3 1/4+63/3 1/12+21/3 1/4+21/9 5/4+21/3 1/20+21/3 1/4+21/15 7/4+21/3 1/28+21/3