Subtract 15/90 from 1/50
1/50 - 15/90 is -11/75.
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,
1/50 = 1 × 9/50 × 9 = 9/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
15/90 = 15 × 5/90 × 5 = 75/450 - Subtract the two like fractions:
9/450 - 75/450 = 9 - 75/450 = -66/450 - After reducing the fraction, the answer is -11/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/50-15/90 1/50-30/90 3/50-15/90 1/50-45/90 5/50-15/90 1/50-75/90 7/50-15/90