Subtract 50/63 from 84/81
1st number: 1 3/81, 2nd number: 50/63
84/81 - 50/63 is 46/189.
Steps for subtracting 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,
84/81 = 84 × 7/81 × 7 = 588/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
50/63 = 50 × 9/63 × 9 = 450/567 - Subtract the two like fractions:
588/567 - 450/567 = 588 - 450/567 = 138/567 - After reducing the fraction, the answer is 46/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: