Add 7/15 and 54/12
1st number: 7/15, 2nd number: 4 6/12
7/15 + 54/12 is 149/30.
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,
7/15 = 7 × 4/15 × 4 = 28/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
54/12 = 54 × 5/12 × 5 = 270/60 - Add the two like fractions:
28/60 + 270/60 = 28 + 270/60 = 298/60 - 298/60 simplified gives 149/30
- So, 7/15 + 54/12 = 149/30
In mixed form: 429/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+54/12 7/30+54/12 7/15+54/24 21/15+54/12 7/45+54/12 7/15+54/36 35/15+54/12 7/75+54/12 7/15+54/60 49/15+54/12 7/15+54/84