Subtract 21/50 from 42/96
42/96 - 21/50 is 7/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 50 is 2400
Next, find the equivalent fraction of both fractional numbers with denominator 2400 - For the 1st fraction, since 96 × 25 = 2400,
42/96 = 42 × 25/96 × 25 = 1050/2400 - Likewise, for the 2nd fraction, since 50 × 48 = 2400,
21/50 = 21 × 48/50 × 48 = 1008/2400 - Subtract the two like fractions:
1050/2400 - 1008/2400 = 1050 - 1008/2400 = 42/2400 - After reducing the fraction, the answer is 7/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/96-21/50 42/96-42/50 42/96-63/50