Subtract 63/40 from 8/45
1st number: 8/45, 2nd number: 1 23/40
8/45 - 63/40 is -503/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
8/45 = 8 × 8/45 × 8 = 64/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
63/40 = 63 × 9/40 × 9 = 567/360 - Subtract the two like fractions:
64/360 - 567/360 = 64 - 567/360 = -503/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-63/40 8/90-63/40 8/45-63/80 24/45-63/40 40/45-63/40 56/45-63/40