Add 27/63 and 18/81
27/63 + 18/81 is 41/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
27/63 = 27 × 9/63 × 9 = 243/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
18/81 = 18 × 7/81 × 7 = 126/567 - Add the two like fractions:
243/567 + 126/567 = 243 + 126/567 = 369/567 - 369/567 simplified gives 41/63
- So, 27/63 + 18/81 = 41/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63+18/81 27/63+36/81 81/63+18/81 27/63+54/81 27/63+90/81