Subtract 1/20 from 9/75
9/75 - 1/20 is 7/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
9/75 = 9 × 4/75 × 4 = 36/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
1/20 = 1 × 15/20 × 15 = 15/300 - Subtract the two like fractions:
36/300 - 15/300 = 36 - 15/300 = 21/300 - After reducing the fraction, the answer is 7/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/75-1/20 9/75-2/20 9/75-1/40 27/75-1/20 9/75-3/20 9/75-1/60 45/75-1/20 9/75-5/20 63/75-1/20 9/75-7/20