Add 4/15 and 54/12
1st number: 4/15, 2nd number: 4 6/12
4/15 + 54/12 is 143/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
4/15 = 4 × 4/15 × 4 = 16/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
54/12 = 54 × 5/12 × 5 = 270/60 - Add the two like fractions:
16/60 + 270/60 = 16 + 270/60 = 286/60 - 286/60 simplified gives 143/30
- So, 4/15 + 54/12 = 143/30
In mixed form: 423/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15+54/12 4/30+54/12 4/15+54/24 12/15+54/12 4/45+54/12 4/15+54/36 20/15+54/12 4/75+54/12 4/15+54/60 28/15+54/12 4/15+54/84