Subtract 36/50 from 36/90
36/90 - 36/50 is -8/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
36/90 = 36 × 5/90 × 5 = 180/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
36/50 = 36 × 9/50 × 9 = 324/450 - Subtract the two like fractions:
180/450 - 324/450 = 180 - 324/450 = -144/450 - After reducing the fraction, the answer is -8/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90-36/50 36/90-72/50