Add 18/20 and 2/80
18/20 + 2/80 is 37/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
18/20 = 18 × 4/20 × 4 = 72/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
2/80 = 2 × 1/80 × 1 = 2/80 - Add the two like fractions:
72/80 + 2/80 = 72 + 2/80 = 74/80 - 74/80 simplified gives 37/40
- So, 18/20 + 2/80 = 37/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20+2/80 18/20+4/80 18/40+2/80 54/20+2/80 18/20+6/80 18/60+2/80 90/20+2/80 18/20+10/80 18/20+14/80