Subtract 6/45 from 20/50
20/50 - 6/45 is 4/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 45 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
20/50 = 20 × 9/50 × 9 = 180/450 - Likewise, for the 2nd fraction, since 45 × 10 = 450,
6/45 = 6 × 10/45 × 10 = 60/450 - Subtract the two like fractions:
180/450 - 60/450 = 180 - 60/450 = 120/450 - After reducing the fraction, the answer is 4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50-6/45 20/50-12/45 20/50-6/90 60/50-6/45 20/50-18/45 20/50-30/45 20/50-42/45