Add 54/80 and 6/12
54/80 + 6/12 is 47/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
54/80 = 54 × 3/80 × 3 = 162/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
6/12 = 6 × 20/12 × 20 = 120/240 - Add the two like fractions:
162/240 + 120/240 = 162 + 120/240 = 282/240 - 282/240 simplified gives 47/40
- So, 54/80 + 6/12 = 47/40
In mixed form: 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+6/24 54/80+18/12 54/80+6/36 54/80+30/12 54/80+6/60 54/80+42/12 54/80+6/84