Add 7/84 and 15/5
1st number: 7/84, 2nd number: 3 0/5
7/84 + 15/5 is 37/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
7/84 = 7 × 5/84 × 5 = 35/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
15/5 = 15 × 84/5 × 84 = 1260/420 - Add the two like fractions:
35/420 + 1260/420 = 35 + 1260/420 = 1295/420 - 1295/420 simplified gives 37/12
- So, 7/84 + 15/5 = 37/12
In mixed form: 31/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84+15/5 7/84+30/5 7/84+15/10 21/84+15/5 7/84+45/5 35/84+15/5 7/84+75/5 7/84+15/25 49/84+15/5 7/84+15/35