Add 4/72 and 18/54
4/72 + 18/54 is 7/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
4/72 = 4 × 3/72 × 3 = 12/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
18/54 = 18 × 4/54 × 4 = 72/216 - Add the two like fractions:
12/216 + 72/216 = 12 + 72/216 = 84/216 - 84/216 simplified gives 7/18
- So, 4/72 + 18/54 = 7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72+18/54 4/72+36/54 12/72+18/54 20/72+18/54 4/72+90/54 28/72+18/54