Add 18/24 and 20/72
18/24 + 20/72 is 37/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
18/24 = 18 × 3/24 × 3 = 54/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
54/72 + 20/72 = 54 + 20/72 = 74/72 - 74/72 simplified gives 37/36
- So, 18/24 + 20/72 = 37/36
In mixed form: 11/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/24+20/72 18/24+40/72 18/48+20/72 54/24+20/72 18/24+60/72 18/72+20/72 90/24+20/72