Subtract 81/96 from 30/20
1st number: 1 10/20, 2nd number: 81/96
30/20 - 81/96 is 21/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 96 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 20 × 24 = 480,
30/20 = 30 × 24/20 × 24 = 720/480 - Likewise, for the 2nd fraction, since 96 × 5 = 480,
81/96 = 81 × 5/96 × 5 = 405/480 - Subtract the two like fractions:
720/480 - 405/480 = 720 - 405/480 = 315/480 - After reducing the fraction, the answer is 21/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-81/96 30/40-81/96 90/20-81/96 30/60-81/96