Subtract 10/75 from 3/42
3/42 - 10/75 is -13/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
3/42 = 3 × 25/42 × 25 = 75/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
10/75 = 10 × 14/75 × 14 = 140/1050 - Subtract the two like fractions:
75/1050 - 140/1050 = 75 - 140/1050 = -65/1050 - After reducing the fraction, the answer is -13/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42-10/75 3/42-20/75 3/84-10/75 9/42-10/75 3/42-30/75 15/42-10/75 3/42-50/75 21/42-10/75 3/42-70/75