Add 20/18 and 2/72
1st number: 1 2/18, 2nd number: 2/72
20/18 + 2/72 is 41/36.
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,
20/18 = 20 × 4/18 × 4 = 80/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
2/72 = 2 × 1/72 × 1 = 2/72 - Add the two like fractions:
80/72 + 2/72 = 80 + 2/72 = 82/72 - 82/72 simplified gives 41/36
- So, 20/18 + 2/72 = 41/36
In mixed form: 15/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+2/72 20/18+4/72 20/36+2/72 60/18+2/72 20/18+6/72 20/54+2/72 20/18+10/72 20/90+2/72 20/18+14/72