Subtract 4/25 from 3/42
3/42 - 4/25 is -31/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 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 25 × 42 = 1050,
4/25 = 4 × 42/25 × 42 = 168/1050 - Subtract the two like fractions:
75/1050 - 168/1050 = 75 - 168/1050 = -93/1050 - After reducing the fraction, the answer is -31/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42-4/25 3/42-8/25 3/84-4/25 3/42-4/50 9/42-4/25 3/42-12/25 3/42-4/75 15/42-4/25 3/42-20/25 21/42-4/25 3/42-28/25