Add 3/18 and 18/80
3/18 + 18/80 is 47/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
3/18 = 3 × 40/18 × 40 = 120/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
18/80 = 18 × 9/80 × 9 = 162/720 - Add the two like fractions:
120/720 + 162/720 = 120 + 162/720 = 282/720 - 282/720 simplified gives 47/120
- So, 3/18 + 18/80 = 47/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18+18/80 3/18+36/80 3/36+18/80 9/18+18/80 3/18+54/80 3/54+18/80 15/18+18/80 3/18+90/80 3/90+18/80 21/18+18/80