Add 50/42 and 72/15
1st number: 1 8/42, 2nd number: 4 12/15
50/42 + 72/15 is 629/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
72/15 = 72 × 14/15 × 14 = 1008/210 - Add the two like fractions:
250/210 + 1008/210 = 250 + 1008/210 = 1258/210 - 1258/210 simplified gives 629/105
- So, 50/42 + 72/15 = 629/105
In mixed form: 5104/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+72/15 50/42+72/30 50/42+72/45 50/42+72/75