Add 54/80 and 35/12
1st number: 54/80, 2nd number: 2 11/12
54/80 + 35/12 is 431/120.
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,
35/12 = 35 × 20/12 × 20 = 700/240 - Add the two like fractions:
162/240 + 700/240 = 162 + 700/240 = 862/240 - 862/240 simplified gives 431/120
- So, 54/80 + 35/12 = 431/120
In mixed form: 371/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+70/12 54/80+35/24 54/80+35/36 54/80+35/60 54/80+35/84