Subtract 24/42 from 18/50
18/50 - 24/42 is -37/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
18/50 = 18 × 21/50 × 21 = 378/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
24/42 = 24 × 25/42 × 25 = 600/1050 - Subtract the two like fractions:
378/1050 - 600/1050 = 378 - 600/1050 = -222/1050 - After reducing the fraction, the answer is -37/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/50-24/42 18/50-48/42 18/50-24/84 54/50-24/42 18/50-72/42 90/50-24/42