Add 12/72 and 4/9
12/72 + 4/9 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
12/72 = 12 × 1/72 × 1 = 12/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
4/9 = 4 × 8/9 × 8 = 32/72 - Add the two like fractions:
12/72 + 32/72 = 12 + 32/72 = 44/72 - 44/72 simplified gives 11/18
- So, 12/72 + 4/9 = 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+4/9 12/72+8/9 12/72+4/18 36/72+4/9 12/72+12/9 12/72+4/27 60/72+4/9 12/72+20/9 12/72+4/45 84/72+4/9 12/72+28/9 12/72+4/63