Add 18/81 and 12/63
18/81 + 12/63 is 26/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 63 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
18/81 = 18 × 7/81 × 7 = 126/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
12/63 = 12 × 9/63 × 9 = 108/567 - Add the two like fractions:
126/567 + 108/567 = 126 + 108/567 = 234/567 - 234/567 simplified gives 26/63
- So, 18/81 + 12/63 = 26/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/81+12/63 18/81+24/63 54/81+12/63 18/81+36/63 90/81+12/63 18/81+60/63 18/81+84/63