Subtract 81/50 from 9/4
1st number: 2 1/4, 2nd number: 1 31/50
9/4 - 81/50 is 63/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 50 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
9/4 = 9 × 25/4 × 25 = 225/100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,
81/50 = 81 × 2/50 × 2 = 162/100 - Subtract the two like fractions:
225/100 - 162/100 = 225 - 162/100 = 63/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4-81/50 9/8-81/50 27/4-81/50 9/12-81/50 45/4-81/50 9/20-81/50 63/4-81/50 9/28-81/50