Add 7/18 and 4/72
7/18 + 4/72 is 4/9.
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,
7/18 = 7 × 4/18 × 4 = 28/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
4/72 = 4 × 1/72 × 1 = 4/72 - Add the two like fractions:
28/72 + 4/72 = 28 + 4/72 = 32/72 - 32/72 simplified gives 4/9
- So, 7/18 + 4/72 = 4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18+4/72 7/18+8/72 7/36+4/72 21/18+4/72 7/18+12/72 7/54+4/72 35/18+4/72 7/18+20/72 7/90+4/72 49/18+4/72 7/18+28/72