Subtract 15/5 from 45/36
1st number: 1 9/36, 2nd number: 3 0/5
45/36 - 15/5 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 5 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
45/36 = 45 × 5/36 × 5 = 225/180 - Likewise, for the 2nd fraction, since 5 × 36 = 180,
15/5 = 15 × 36/5 × 36 = 540/180 - Subtract the two like fractions:
225/180 - 540/180 = 225 - 540/180 = -315/180 - After reducing the fraction, the answer is -7/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36-15/5 45/36-30/5 45/72-15/5 45/36-15/10 45/36-45/5 45/36-75/5 45/36-15/25 45/36-15/35