Add 3/18 and 28/72
3/18 + 28/72 is 5/9.
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,
3/18 = 3 × 4/18 × 4 = 12/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
28/72 = 28 × 1/72 × 1 = 28/72 - Add the two like fractions:
12/72 + 28/72 = 12 + 28/72 = 40/72 - 40/72 simplified gives 5/9
- So, 3/18 + 28/72 = 5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18+28/72 3/18+56/72 3/36+28/72 9/18+28/72 3/18+84/72 3/54+28/72 15/18+28/72 3/90+28/72 21/18+28/72