Subtract 8/40 from 50/20
1st number: 2 10/20, 2nd number: 8/40
50/20 - 8/40 is 23/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
50/20 = 50 × 2/20 × 2 = 100/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
8/40 = 8 × 1/40 × 1 = 8/40 - Subtract the two like fractions:
100/40 - 8/40 = 100 - 8/40 = 92/40 - After reducing the fraction, the answer is 23/10
- In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20-16/40 50/40-8/40 50/20-8/80 50/20-24/40 50/60-8/40 50/20-56/40