Subtract 72/36 from 81/3
1st number: 27 0/3, 2nd number: 2 0/36
81/3 - 72/36 is 25/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 3 × 12 = 36,
81/3 = 81 × 12/3 × 12 = 972/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
72/36 = 72 × 1/36 × 1 = 72/36 - Subtract the two like fractions:
972/36 - 72/36 = 972 - 72/36 = 900/36 - After reducing the fraction, the answer is 25/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6-72/36 81/9-72/36 81/15-72/36 81/21-72/36