Add 18/12 and 2/80
1st number: 1 6/12, 2nd number: 2/80
18/12 + 2/80 is 61/40.
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,
18/12 = 18 × 20/12 × 20 = 360/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
2/80 = 2 × 3/80 × 3 = 6/240 - Add the two like fractions:
360/240 + 6/240 = 360 + 6/240 = 366/240 - 366/240 simplified gives 61/40
- So, 18/12 + 2/80 = 61/40
In mixed form: 121/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+2/80 18/12+4/80 18/24+2/80 54/12+2/80 18/12+6/80 18/36+2/80 90/12+2/80 18/12+10/80 18/60+2/80 18/12+14/80 18/84+2/80