Add 18/80 and 4/12
18/80 + 4/12 is 67/120.
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,
18/80 = 18 × 3/80 × 3 = 54/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
4/12 = 4 × 20/12 × 20 = 80/240 - Add the two like fractions:
54/240 + 80/240 = 54 + 80/240 = 134/240 - 134/240 simplified gives 67/120
- So, 18/80 + 4/12 = 67/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+4/12 18/80+8/12 18/80+4/24 54/80+4/12 18/80+4/36 90/80+4/12 18/80+20/12 18/80+4/60 18/80+28/12 18/80+4/84