Add 42/35 and 56/42
1st number: 1 7/35, 2nd number: 1 14/42
42/35 + 56/42 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
42/35 = 42 × 6/35 × 6 = 252/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
56/42 = 56 × 5/42 × 5 = 280/210 - Add the two like fractions:
252/210 + 280/210 = 252 + 280/210 = 532/210 - 532/210 simplified gives 38/15
- So, 42/35 + 56/42 = 38/15
In mixed form: 28/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+56/42 42/70+56/42 42/35+56/84