Add 20/15 and 50/56
1st number: 1 5/15, 2nd number: 50/56
20/15 + 50/56 is 187/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
20/15 = 20 × 56/15 × 56 = 1120/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
50/56 = 50 × 15/56 × 15 = 750/840 - Add the two like fractions:
1120/840 + 750/840 = 1120 + 750/840 = 1870/840 - 1870/840 simplified gives 187/84
- So, 20/15 + 50/56 = 187/84
In mixed form: 219/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+50/56 20/30+50/56 60/15+50/56 20/45+50/56 20/75+50/56