Add 42/15 and 50/54
1st number: 2 12/15, 2nd number: 50/54
42/15 + 50/54 is 503/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
42/15 = 42 × 18/15 × 18 = 756/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
50/54 = 50 × 5/54 × 5 = 250/270 - Add the two like fractions:
756/270 + 250/270 = 756 + 250/270 = 1006/270 - 1006/270 simplified gives 503/135
- So, 42/15 + 50/54 = 503/135
In mixed form: 398/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+50/54 42/30+50/54 42/45+50/54 42/75+50/54