Subtract 63/36 from 54/90
1st number: 54/90, 2nd number: 1 27/36
54/90 - 63/36 is -23/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
54/90 = 54 × 2/90 × 2 = 108/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
63/36 = 63 × 5/36 × 5 = 315/180 - Subtract the two like fractions:
108/180 - 315/180 = 108 - 315/180 = -207/180 - After reducing the fraction, the answer is -23/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90-63/72