Add 21/3 and 50/15
1st number: 7 0/3, 2nd number: 3 5/15
21/3 + 50/15 is 31/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 15 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
21/3 = 21 × 5/3 × 5 = 105/15 - Likewise, for the 2nd fraction, since 15 × 1 = 15,
50/15 = 50 × 1/15 × 1 = 50/15 - Add the two like fractions:
105/15 + 50/15 = 105 + 50/15 = 155/15 - 155/15 simplified gives 31/3
- So, 21/3 + 50/15 = 31/3
In mixed form: 101/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3+50/15 21/6+50/15 21/3+50/30 63/3+50/15 21/9+50/15 21/3+50/45 21/15+50/15 21/3+50/75