Subtract 63/30 from 45/36
1st number: 1 9/36, 2nd number: 2 3/30
45/36 - 63/30 is -17/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 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 30 × 6 = 180,
63/30 = 63 × 6/30 × 6 = 378/180 - Subtract the two like fractions:
225/180 - 378/180 = 225 - 378/180 = -153/180 - After reducing the fraction, the answer is -17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36-63/30 45/72-63/30 45/36-63/60 45/36-63/90