Subtract 8/42 from 12/75
12/75 - 8/42 is -16/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
12/75 = 12 × 14/75 × 14 = 168/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
8/42 = 8 × 25/42 × 25 = 200/1050 - Subtract the two like fractions:
168/1050 - 200/1050 = 168 - 200/1050 = -32/1050 - After reducing the fraction, the answer is -16/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75-8/42 12/75-16/42 12/75-8/84 36/75-8/42 12/75-24/42 60/75-8/42 12/75-40/42 84/75-8/42 12/75-56/42