Add 12/27 and 63/18
1st number: 12/27, 2nd number: 3 9/18
12/27 + 63/18 is 71/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
12/27 = 12 × 2/27 × 2 = 24/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
63/18 = 63 × 3/18 × 3 = 189/54 - Add the two like fractions:
24/54 + 189/54 = 24 + 189/54 = 213/54 - 213/54 simplified gives 71/18
- So, 12/27 + 63/18 = 71/18
In mixed form: 317/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/27+63/18 12/54+63/18 12/27+63/36 36/27+63/18 12/81+63/18 12/27+63/54 60/27+63/18 12/27+63/90 84/27+63/18