Subtract 40/72 from 54/75
54/75 - 40/72 is 37/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 75 × 24 = 1800,
54/75 = 54 × 24/75 × 24 = 1296/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
40/72 = 40 × 25/72 × 25 = 1000/1800 - Subtract the two like fractions:
1296/1800 - 1000/1800 = 1296 - 1000/1800 = 296/1800 - After reducing the fraction, the answer is 37/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75-80/72