Subtract 63/18 from 4/45
1st number: 4/45, 2nd number: 3 9/18
4/45 - 63/18 is -307/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
4/45 = 4 × 2/45 × 2 = 8/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Subtract the two like fractions:
8/90 - 315/90 = 8 - 315/90 = -307/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-63/18 4/90-63/18 4/45-63/36 12/45-63/18 4/45-63/54 20/45-63/18 4/45-63/90 28/45-63/18