Add 4/72 and 15/18
4/72 + 15/18 is 8/9.
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,
4/72 = 4 × 1/72 × 1 = 4/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
15/18 = 15 × 4/18 × 4 = 60/72 - Add the two like fractions:
4/72 + 60/72 = 4 + 60/72 = 64/72 - 64/72 simplified gives 8/9
- So, 4/72 + 15/18 = 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72+15/18 4/72+30/18 4/72+15/36 12/72+15/18 4/72+45/18 4/72+15/54 20/72+15/18 4/72+75/18 4/72+15/90 28/72+15/18