Add 10/14 and 2/21
10/14 + 2/21 is 17/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
10/14 = 10 × 3/14 × 3 = 30/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
2/21 = 2 × 2/21 × 2 = 4/42 - Add the two like fractions:
30/42 + 4/42 = 30 + 4/42 = 34/42 - 34/42 simplified gives 17/21
- So, 10/14 + 2/21 = 17/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/14+2/21 10/14+4/21 10/28+2/21 10/14+2/42 30/14+2/21 10/14+6/21 10/42+2/21 10/14+2/63 50/14+2/21 10/14+10/21 10/70+2/21 70/14+2/21 10/14+14/21 10/98+2/21