Subtract 54/75 from 3/20
3/20 - 54/75 is -57/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
3/20 = 3 × 15/20 × 15 = 45/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
54/75 = 54 × 4/75 × 4 = 216/300 - Subtract the two like fractions:
45/300 - 216/300 = 45 - 216/300 = -171/300 - After reducing the fraction, the answer is -57/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-54/75 3/40-54/75 9/20-54/75 3/60-54/75 15/20-54/75 21/20-54/75