Add 27/72 and 84/18
1st number: 27/72, 2nd number: 4 12/18
27/72 + 84/18 is 121/24.
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,
27/72 = 27 × 1/72 × 1 = 27/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
84/18 = 84 × 4/18 × 4 = 336/72 - Add the two like fractions:
27/72 + 336/72 = 27 + 336/72 = 363/72 - 363/72 simplified gives 121/24
- So, 27/72 + 84/18 = 121/24
In mixed form: 51/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+84/18 27/72+84/36 81/72+84/18 27/72+84/54 27/72+84/90