Add 42/15 and 30/14
1st number: 2 12/15, 2nd number: 2 2/14
42/15 + 30/14 is 173/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
42/15 = 42 × 14/15 × 14 = 588/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
30/14 = 30 × 15/14 × 15 = 450/210 - Add the two like fractions:
588/210 + 450/210 = 588 + 450/210 = 1038/210 - 1038/210 simplified gives 173/35
- So, 42/15 + 30/14 = 173/35
In mixed form: 433/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+30/14 42/15+60/14 42/30+30/14 42/15+30/28 42/15+90/14 42/45+30/14 42/15+30/42 42/75+30/14 42/15+30/70 42/15+30/98