Subtract 12/50 from 81/4
1st number: 20 1/4, 2nd number: 12/50
81/4 - 12/50 is 2001/100.
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,
81/4 = 81 × 25/4 × 25 = 2025/100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,
12/50 = 12 × 2/50 × 2 = 24/100 - Subtract the two like fractions:
2025/100 - 24/100 = 2025 - 24/100 = 2001/100 - In mixed form: 201/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/4-24/50 81/8-12/50 81/4-36/50 81/12-12/50 81/4-60/50 81/20-12/50 81/4-84/50 81/28-12/50