Add 54/15 and 20/24
1st number: 3 9/15, 2nd number: 20/24
54/15 + 20/24 is 133/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 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 24 × 5 = 120,
20/24 = 20 × 5/24 × 5 = 100/120 - Add the two like fractions:
432/120 + 100/120 = 432 + 100/120 = 532/120 - 532/120 simplified gives 133/30
- So, 54/15 + 20/24 = 133/30
In mixed form: 413/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+40/24 54/30+20/24 54/15+20/48 54/15+60/24 54/45+20/24 54/15+20/72 54/75+20/24