Add 21/15 and 7/50
1st number: 1 6/15, 2nd number: 7/50
21/15 + 7/50 is 77/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 15 × 10 = 150,
21/15 = 21 × 10/15 × 10 = 210/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
7/50 = 7 × 3/50 × 3 = 21/150 - Add the two like fractions:
210/150 + 21/150 = 210 + 21/150 = 231/150 - 231/150 simplified gives 77/50
- So, 21/15 + 7/50 = 77/50
In mixed form: 127/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/15+7/50 21/15+14/50 21/30+7/50 63/15+7/50 21/15+21/50 21/45+7/50 21/15+35/50 21/75+7/50 21/15+49/50