Add 10/21 and 35/10
1st number: 10/21, 2nd number: 3 5/10
10/21 + 35/10 is 167/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
10/21 = 10 × 10/21 × 10 = 100/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
35/10 = 35 × 21/10 × 21 = 735/210 - Add the two like fractions:
100/210 + 735/210 = 100 + 735/210 = 835/210 - 835/210 simplified gives 167/42
- So, 10/21 + 35/10 = 167/42
In mixed form: 341/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+35/10 10/21+70/10 10/42+35/10 10/21+35/20 30/21+35/10 10/63+35/10 10/21+35/30 50/21+35/10 10/21+35/50 70/21+35/10 10/21+35/70