Subtract 8/20 from 8/4
1st number: 2 0/4, 2nd number: 8/20
8/4 - 8/20 is 8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
8/4 = 8 × 5/4 × 5 = 40/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
8/20 = 8 × 1/20 × 1 = 8/20 - Subtract the two like fractions:
40/20 - 8/20 = 40 - 8/20 = 32/20 - After reducing the fraction, the answer is 8/5
- In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-8/20 8/4-16/20 8/4-8/40 24/4-8/20 8/4-24/20 8/12-8/20 8/4-8/60 40/4-8/20 8/4-40/20 8/20-8/20 56/4-8/20 8/4-56/20 8/28-8/20