Subtract 20/10 from 45/20
1st number: 2 5/20, 2nd number: 2 0/10
45/20 - 20/10 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
20/10 = 20 × 2/10 × 2 = 40/20 - Subtract the two like fractions:
45/20 - 40/20 = 45 - 40/20 = 5/20 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-20/10 45/20-40/10 45/40-20/10 45/20-60/10 45/60-20/10 45/20-20/30 45/20-20/50 45/20-20/70