Subtract 18/48 from 21/50
21/50 - 18/48 is 9/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 48 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 50 × 24 = 1200,
21/50 = 21 × 24/50 × 24 = 504/1200 - Likewise, for the 2nd fraction, since 48 × 25 = 1200,
18/48 = 18 × 25/48 × 25 = 450/1200 - Subtract the two like fractions:
504/1200 - 450/1200 = 504 - 450/1200 = 54/1200 - After reducing the fraction, the answer is 9/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-18/48 21/50-36/48 21/50-18/96 63/50-18/48 21/50-54/48 21/50-90/48