Subtract 50/81 from 81/36
1st number: 2 9/36, 2nd number: 50/81
81/36 - 50/81 is 529/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
81/36 = 81 × 9/36 × 9 = 729/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
50/81 = 50 × 4/81 × 4 = 200/324 - Subtract the two like fractions:
729/324 - 200/324 = 729 - 200/324 = 529/324 - In mixed form: 1205/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/72-50/81