Add 9/18 and 4/80
9/18 + 4/80 is 11/20.
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,
9/18 = 9 × 40/18 × 40 = 360/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
4/80 = 4 × 9/80 × 9 = 36/720 - Add the two like fractions:
360/720 + 36/720 = 360 + 36/720 = 396/720 - 396/720 simplified gives 11/20
- So, 9/18 + 4/80 = 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+8/80 9/36+4/80 27/18+4/80 9/18+12/80 9/54+4/80 45/18+4/80 9/18+20/80 9/90+4/80 63/18+4/80 9/18+28/80