Add 54/12 and 27/20
1st number: 4 6/12, 2nd number: 1 7/20
54/12 + 27/20 is 117/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
54/12 = 54 × 5/12 × 5 = 270/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60 - Add the two like fractions:
270/60 + 81/60 = 270 + 81/60 = 351/60 - 351/60 simplified gives 117/20
- So, 54/12 + 27/20 = 117/20
In mixed form: 517/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12+54/20 54/24+27/20 54/12+27/40 54/12+81/20 54/36+27/20 54/12+27/60 54/60+27/20 54/84+27/20