Add 63/12 and 18/81
1st number: 5 3/12, 2nd number: 18/81
63/12 + 18/81 is 197/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
63/12 = 63 × 27/12 × 27 = 1701/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
18/81 = 18 × 4/81 × 4 = 72/324 - Add the two like fractions:
1701/324 + 72/324 = 1701 + 72/324 = 1773/324 - 1773/324 simplified gives 197/36
- So, 63/12 + 18/81 = 197/36
In mixed form: 517/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/12+36/81 63/24+18/81 63/12+54/81 63/36+18/81 63/12+90/81 63/60+18/81 63/84+18/81