Subtract 36/25 from 15/90
1st number: 15/90, 2nd number: 1 11/25
15/90 - 36/25 is -191/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
15/90 = 15 × 5/90 × 5 = 75/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
36/25 = 36 × 18/25 × 18 = 648/450 - Subtract the two like fractions:
75/450 - 648/450 = 75 - 648/450 = -573/450 - After reducing the fraction, the answer is -191/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90-36/25 15/90-72/25 15/90-36/50 45/90-36/25 15/90-36/75 75/90-36/25