Add 15/14 and 42/18
1st number: 1 1/14, 2nd number: 2 6/18
15/14 + 42/18 is 143/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
15/14 = 15 × 9/14 × 9 = 135/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
42/18 = 42 × 7/18 × 7 = 294/126 - Add the two like fractions:
135/126 + 294/126 = 135 + 294/126 = 429/126 - 429/126 simplified gives 143/42
- So, 15/14 + 42/18 = 143/42
In mixed form: 317/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14+42/18 15/14+84/18 15/28+42/18 15/14+42/36 45/14+42/18 15/42+42/18 15/14+42/54 75/14+42/18 15/70+42/18 15/14+42/90 15/98+42/18