Add 40/12 and 54/80
1st number: 3 4/12, 2nd number: 54/80
40/12 + 54/80 is 481/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
40/12 = 40 × 20/12 × 20 = 800/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
54/80 = 54 × 3/80 × 3 = 162/240 - Add the two like fractions:
800/240 + 162/240 = 800 + 162/240 = 962/240 - 962/240 simplified gives 481/120
- So, 40/12 + 54/80 = 481/120
In mixed form: 41/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+54/80 40/24+54/80 40/36+54/80 40/60+54/80 40/84+54/80