Subtract 30/20 from 50/10
1st number: 5 0/10, 2nd number: 1 10/20
50/10 - 30/20 is 7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
50/10 = 50 × 2/10 × 2 = 100/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Subtract the two like fractions:
100/20 - 30/20 = 100 - 30/20 = 70/20 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/10-60/20 50/20-30/20 50/10-30/40 50/10-90/20 50/30-30/20 50/10-30/60 50/70-30/20