Subtract 1/81 from 49/63
49/63 - 1/81 is 62/81.
Steps for subtracting 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,
49/63 = 49 × 9/63 × 9 = 441/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
1/81 = 1 × 7/81 × 7 = 7/567 - Subtract the two like fractions:
441/567 - 7/567 = 441 - 7/567 = 434/567 - After reducing the fraction, the answer is 62/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/63-1/81 49/63-2/81 49/63-3/81 49/63-5/81 49/63-7/81