Add 4/63 and 42/81
4/63 + 42/81 is 110/189.
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,
4/63 = 4 × 9/63 × 9 = 36/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
42/81 = 42 × 7/81 × 7 = 294/567 - Add the two like fractions:
36/567 + 294/567 = 36 + 294/567 = 330/567 - 330/567 simplified gives 110/189
- So, 4/63 + 42/81 = 110/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/63+42/81 4/63+84/81 12/63+42/81 20/63+42/81 28/63+42/81