Add 8/18 and 12/72
8/18 + 12/72 is 11/18.
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,
8/18 = 8 × 4/18 × 4 = 32/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
12/72 = 12 × 1/72 × 1 = 12/72 - Add the two like fractions:
32/72 + 12/72 = 32 + 12/72 = 44/72 - 44/72 simplified gives 11/18
- So, 8/18 + 12/72 = 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+12/72 8/18+24/72 8/36+12/72 24/18+12/72 8/18+36/72 8/54+12/72 40/18+12/72 8/18+60/72 8/90+12/72 56/18+12/72 8/18+84/72