Add 15/18 and 2/80
15/18 + 2/80 is 103/120.
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,
15/18 = 15 × 40/18 × 40 = 600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
2/80 = 2 × 9/80 × 9 = 18/720 - Add the two like fractions:
600/720 + 18/720 = 600 + 18/720 = 618/720 - 618/720 simplified gives 103/120
- So, 15/18 + 2/80 = 103/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+2/80 15/18+4/80 15/36+2/80 45/18+2/80 15/18+6/80 15/54+2/80 75/18+2/80 15/18+10/80 15/90+2/80 15/18+14/80