Add 10/18 and 20/72
10/18 + 20/72 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
10/18 = 10 × 4/18 × 4 = 40/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
40/72 + 20/72 = 40 + 20/72 = 60/72 - 60/72 simplified gives 5/6
- So, 10/18 + 20/72 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+20/72 10/18+40/72 10/36+20/72 30/18+20/72 10/18+60/72 10/54+20/72 50/18+20/72 10/90+20/72 70/18+20/72