Subtract 18/40 from 8/75
8/75 - 18/40 is -103/300.
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,
8/75 = 8 × 8/75 × 8 = 64/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
18/40 = 18 × 15/40 × 15 = 270/600 - Subtract the two like fractions:
64/600 - 270/600 = 64 - 270/600 = -206/600 - After reducing the fraction, the answer is -103/300
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/75-18/40 8/75-36/40 8/75-18/80 24/75-18/40 8/75-54/40 40/75-18/40 8/75-90/40 56/75-18/40