Subtract 6/9 from 42/75
42/75 - 6/9 is -8/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
42/75 = 42 × 3/75 × 3 = 126/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
6/9 = 6 × 25/9 × 25 = 150/225 - Subtract the two like fractions:
126/225 - 150/225 = 126 - 150/225 = -24/225 - After reducing the fraction, the answer is -8/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75-6/9 42/75-12/9 42/75-6/18 42/75-18/9 42/75-6/27 42/75-30/9 42/75-6/45 42/75-42/9 42/75-6/63