Add 4/72 and 12/18
4/72 + 12/18 is 13/18.
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,
12/18 = 12 × 4/18 × 4 = 48/72 - Add the two like fractions:
4/72 + 48/72 = 4 + 48/72 = 52/72 - 52/72 simplified gives 13/18
- So, 4/72 + 12/18 = 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72+12/18 4/72+24/18 4/72+12/36 12/72+12/18 4/72+36/18 4/72+12/54 20/72+12/18 4/72+60/18 4/72+12/90 28/72+12/18 4/72+84/18