Subtract 12/42 from 1/75
1/75 - 12/42 is -143/525.
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,
1/75 = 1 × 14/75 × 14 = 14/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
12/42 = 12 × 25/42 × 25 = 300/1050 - Subtract the two like fractions:
14/1050 - 300/1050 = 14 - 300/1050 = -286/1050 - After reducing the fraction, the answer is -143/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/75-12/42 1/75-24/42 1/75-12/84 3/75-12/42 1/75-36/42 5/75-12/42 1/75-60/42 7/75-12/42 1/75-84/42