Subtract 9/40 from 7/75
7/75 - 9/40 is -79/600.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
7/75 = 7 × 8/75 × 8 = 56/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
9/40 = 9 × 15/40 × 15 = 135/600 - Subtract the two like fractions:
56/600 - 135/600 = 56 - 135/600 = -79/600
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/75-9/40 7/75-18/40 7/75-9/80 21/75-9/40 7/75-27/40 35/75-9/40 7/75-45/40 49/75-9/40 7/75-63/40