Subtract 18/80 from 4/75
4/75 - 18/80 is -103/600.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
4/75 = 4 × 16/75 × 16 = 64/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
18/80 = 18 × 15/80 × 15 = 270/1200 - Subtract the two like fractions:
64/1200 - 270/1200 = 64 - 270/1200 = -206/1200 - After reducing the fraction, the answer is -103/600
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/75-18/80 4/75-36/80 12/75-18/80 4/75-54/80 20/75-18/80 4/75-90/80 28/75-18/80