Add 54/45 and 3/12
1st number: 1 9/45, 2nd number: 3/12
54/45 + 3/12 is 29/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
54/45 = 54 × 4/45 × 4 = 216/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
3/12 = 3 × 15/12 × 15 = 45/180 - Add the two like fractions:
216/180 + 45/180 = 216 + 45/180 = 261/180 - 261/180 simplified gives 29/20
- So, 54/45 + 3/12 = 29/20
In mixed form: 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+6/12 54/90+3/12 54/45+3/24 54/45+9/12 54/45+3/36 54/45+15/12 54/45+3/60 54/45+21/12 54/45+3/84