Add 42/30 and 15/14
1st number: 1 12/30, 2nd number: 1 1/14
42/30 + 15/14 is 173/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
15/14 = 15 × 15/14 × 15 = 225/210 - Add the two like fractions:
294/210 + 225/210 = 294 + 225/210 = 519/210 - 519/210 simplified gives 173/70
- So, 42/30 + 15/14 = 173/70
In mixed form: 233/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+15/14 42/30+30/14 42/60+15/14 42/30+15/28 42/30+45/14 42/90+15/14 42/30+15/42 42/30+75/14 42/30+15/70 42/30+15/98