Add 12/18 and 4/72
12/18 + 4/72 is 13/18.
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,
12/18 = 12 × 4/18 × 4 = 48/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
4/72 = 4 × 1/72 × 1 = 4/72 - Add the two like fractions:
48/72 + 4/72 = 48 + 4/72 = 52/72 - 52/72 simplified gives 13/18
- So, 12/18 + 4/72 = 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+4/72 12/18+8/72 12/36+4/72 36/18+4/72 12/18+12/72 12/54+4/72 60/18+4/72 12/18+20/72 12/90+4/72 84/18+4/72 12/18+28/72