Add 54/15 and 6/8
1st number: 3 9/15, 2nd number: 6/8
54/15 + 6/8 is 87/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
54/15 = 54 × 8/15 × 8 = 432/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
6/8 = 6 × 15/8 × 15 = 90/120 - Add the two like fractions:
432/120 + 90/120 = 432 + 90/120 = 522/120 - 522/120 simplified gives 87/20
- So, 54/15 + 6/8 = 87/20
In mixed form: 47/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+12/8 54/30+6/8 54/15+6/16 54/15+18/8 54/45+6/8 54/15+6/24 54/15+30/8 54/75+6/8 54/15+6/40 54/15+42/8 54/15+6/56