Add 10/15 and 32/42
10/15 + 32/42 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
10/15 = 10 × 14/15 × 14 = 140/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
32/42 = 32 × 5/42 × 5 = 160/210 - Add the two like fractions:
140/210 + 160/210 = 140 + 160/210 = 300/210 - 300/210 simplified gives 10/7
- So, 10/15 + 32/42 = 10/7
In mixed form: 13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+32/42 10/15+64/42 10/30+32/42 10/15+32/84 30/15+32/42 10/15+96/42 10/45+32/42 50/15+32/42 10/75+32/42 70/15+32/42