Add 15/72 and 12/9
1st number: 15/72, 2nd number: 1 3/9
15/72 + 12/9 is 37/24.
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,
15/72 = 15 × 1/72 × 1 = 15/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
12/9 = 12 × 8/9 × 8 = 96/72 - Add the two like fractions:
15/72 + 96/72 = 15 + 96/72 = 111/72 - 111/72 simplified gives 37/24
- So, 15/72 + 12/9 = 37/24
In mixed form: 113/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+12/9 15/72+24/9 15/72+12/18 45/72+12/9 15/72+36/9 15/72+12/27 75/72+12/9 15/72+60/9 15/72+12/45 15/72+84/9 15/72+12/63