Subtract 12/50 from 6/42
6/42 - 12/50 is -17/175.
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,
6/42 = 6 × 25/42 × 25 = 150/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
12/50 = 12 × 21/50 × 21 = 252/1050 - Subtract the two like fractions:
150/1050 - 252/1050 = 150 - 252/1050 = -102/1050 - After reducing the fraction, the answer is -17/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42-12/50 6/42-24/50 6/84-12/50 18/42-12/50 6/42-36/50 30/42-12/50 6/42-60/50 6/42-84/50