Add 6/15 and 18/42
6/15 + 18/42 is 29/35.
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,
6/15 = 6 × 14/15 × 14 = 84/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
18/42 = 18 × 5/42 × 5 = 90/210 - Add the two like fractions:
84/210 + 90/210 = 84 + 90/210 = 174/210 - 174/210 simplified gives 29/35
- So, 6/15 + 18/42 = 29/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15+18/42 6/15+36/42 6/30+18/42 6/15+18/84 18/15+18/42 6/15+54/42 6/45+18/42 30/15+18/42 6/15+90/42 6/75+18/42 42/15+18/42