Subtract 21/8 from 54/25
1st number: 2 4/25, 2nd number: 2 5/8
54/25 - 21/8 is -93/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
54/25 = 54 × 8/25 × 8 = 432/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
21/8 = 21 × 25/8 × 25 = 525/200 - Subtract the two like fractions:
432/200 - 525/200 = 432 - 525/200 = -93/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/25-42/8 54/50-21/8 54/25-21/16 54/25-63/8 54/75-21/8 54/25-21/24 54/25-21/40 54/25-21/56