Add 1/4 and 10/21
1/4 + 10/21 is 61/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
1/4 = 1 × 21/4 × 21 = 21/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
10/21 = 10 × 4/21 × 4 = 40/84 - Add the two like fractions:
21/84 + 40/84 = 21 + 40/84 = 61/84 - So, 1/4 + 10/21 = 61/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4+10/21 1/4+20/21 1/8+10/21 1/4+10/42 3/4+10/21 1/4+30/21 1/12+10/21 1/4+10/63 5/4+10/21 1/4+50/21 1/20+10/21 7/4+10/21 1/4+70/21 1/28+10/21