Subtract 42/50 from 20/24
20/24 - 42/50 is -1/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 50 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 24 × 25 = 600,
20/24 = 20 × 25/24 × 25 = 500/600 - Likewise, for the 2nd fraction, since 50 × 12 = 600,
42/50 = 42 × 12/50 × 12 = 504/600 - Subtract the two like fractions:
500/600 - 504/600 = 500 - 504/600 = -4/600 - After reducing the fraction, the answer is -1/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24-42/50 20/24-84/50 20/48-42/50 60/24-42/50 20/72-42/50