Add 30/15 and 50/84
1st number: 2 0/15, 2nd number: 50/84
30/15 + 50/84 is 109/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
30/15 = 30 × 28/15 × 28 = 840/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
50/84 = 50 × 5/84 × 5 = 250/420 - Add the two like fractions:
840/420 + 250/420 = 840 + 250/420 = 1090/420 - 1090/420 simplified gives 109/42
- So, 30/15 + 50/84 = 109/42
In mixed form: 225/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+50/84 90/15+50/84 30/45+50/84 30/75+50/84