Add 6/5 and 15/84, Solve 1 1/5 + 15/84 as a fraction

Add 6/5 and 15/84

1^st number: 1 1/5, 2^nd number: 15/84

6/5 + 15/84 is 193/140.

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,
6/5 = 6 × 84/5 × 84 = 504/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420
Add the two like fractions:
504/420 + 75/420 = 504 + 75/420 = 579/420
579/420 simplified gives 193/140
So, 6/5 + 15/84 = 193/140
In mixed form: 153/140

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad