Add 7/5 and 15/84
1st number: 1 2/5, 2nd number: 15/84
7/5 + 15/84 is 221/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
7/5 = 7 × 84/5 × 84 = 588/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Add the two like fractions:
588/420 + 75/420 = 588 + 75/420 = 663/420 - 663/420 simplified gives 221/140
- So, 7/5 + 15/84 = 221/140
In mixed form: 181/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5+15/84 7/5+30/84 7/10+15/84 21/5+15/84 7/5+45/84 7/15+15/84 35/5+15/84 7/5+75/84 7/25+15/84 49/5+15/84 7/35+15/84