Add 56/42 and 15/27
1st number: 1 14/42, 2nd number: 15/27
56/42 + 15/27 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
56/42 = 56 × 9/42 × 9 = 504/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
15/27 = 15 × 14/27 × 14 = 210/378 - Add the two like fractions:
504/378 + 210/378 = 504 + 210/378 = 714/378 - 714/378 simplified gives 17/9
- So, 56/42 + 15/27 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+30/27 56/84+15/27 56/42+15/54 56/42+45/27 56/42+15/81 56/42+75/27