Subtract 9/50 from 9/42
9/42 - 9/50 is 6/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
9/42 = 9 × 25/42 × 25 = 225/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
9/50 = 9 × 21/50 × 21 = 189/1050 - Subtract the two like fractions:
225/1050 - 189/1050 = 225 - 189/1050 = 36/1050 - After reducing the fraction, the answer is 6/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42-9/50 9/42-18/50 9/84-9/50 27/42-9/50 9/42-27/50 45/42-9/50 9/42-45/50 63/42-9/50 9/42-63/50