Add 54/16 and 45/12
1st number: 3 6/16, 2nd number: 3 9/12
54/16 + 45/12 is 57/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 16 × 3 = 48,
54/16 = 54 × 3/16 × 3 = 162/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
45/12 = 45 × 4/12 × 4 = 180/48 - Add the two like fractions:
162/48 + 180/48 = 162 + 180/48 = 342/48 - 342/48 simplified gives 57/8
- So, 54/16 + 45/12 = 57/8
In mixed form: 71/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16+90/12 54/32+45/12 54/16+45/24 54/48+45/12 54/16+45/36 54/80+45/12 54/16+45/60 54/16+45/84