Add 54/12 and 9/20
1st number: 4 6/12, 2nd number: 9/20
54/12 + 9/20 is 99/20.
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,
9/20 = 9 × 3/20 × 3 = 27/60 - Add the two like fractions:
270/60 + 27/60 = 270 + 27/60 = 297/60 - 297/60 simplified gives 99/20
- So, 54/12 + 9/20 = 99/20
In mixed form: 419/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12+18/20 54/24+9/20 54/12+9/40 54/12+27/20 54/36+9/20 54/12+9/60 54/12+45/20 54/60+9/20 54/12+63/20 54/84+9/20