Subtract 21/6 from 54/75
1st number: 54/75, 2nd number: 3 3/6
54/75 - 21/6 is -139/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
54/75 = 54 × 2/75 × 2 = 108/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
21/6 = 21 × 25/6 × 25 = 525/150 - Subtract the two like fractions:
108/150 - 525/150 = 108 - 525/150 = -417/150 - After reducing the fraction, the answer is -139/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75-42/6 54/75-21/12 54/75-63/6 54/75-21/18 54/75-21/30 54/75-21/42