Subtract 3/90 from 10/50
10/50 - 3/90 is 1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
10/50 = 10 × 9/50 × 9 = 90/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
3/90 = 3 × 5/90 × 5 = 15/450 - Subtract the two like fractions:
90/450 - 15/450 = 90 - 15/450 = 75/450 - After reducing the fraction, the answer is 1/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/50-3/90 10/50-6/90 30/50-3/90 10/50-9/90 10/50-15/90 70/50-3/90 10/50-21/90