Add 20/72 and 6/18
20/72 + 6/18 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
6/18 = 6 × 4/18 × 4 = 24/72 - Add the two like fractions:
20/72 + 24/72 = 20 + 24/72 = 44/72 - 44/72 simplified gives 11/18
- So, 20/72 + 6/18 = 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/72+6/18 20/72+12/18 20/72+6/36 60/72+6/18 20/72+6/54 20/72+30/18 20/72+6/90 20/72+42/18