Add 3/12 and 15/80
3/12 + 15/80 is 7/16.
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,
3/12 = 3 × 20/12 × 20 = 60/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
15/80 = 15 × 3/80 × 3 = 45/240 - Add the two like fractions:
60/240 + 45/240 = 60 + 45/240 = 105/240 - 105/240 simplified gives 7/16
- So, 3/12 + 15/80 = 7/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+15/80 3/12+30/80 3/24+15/80 9/12+15/80 3/12+45/80 3/36+15/80 15/12+15/80 3/12+75/80 3/60+15/80 21/12+15/80 3/84+15/80