Add 21/15 and 50/30
1st number: 1 6/15, 2nd number: 1 20/30
21/15 + 50/30 is 46/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
50/30 = 50 × 1/30 × 1 = 50/30 - Add the two like fractions:
42/30 + 50/30 = 42 + 50/30 = 92/30 - 92/30 simplified gives 46/15
- So, 21/15 + 50/30 = 46/15
In mixed form: 31/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/15+50/30 21/30+50/30 21/15+50/60 63/15+50/30 21/45+50/30 21/15+50/90 21/75+50/30