Subtract 63/45 from 6/7
1st number: 6/7, 2nd number: 1 18/45
6/7 - 63/45 is -19/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
6/7 = 6 × 45/7 × 45 = 270/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
63/45 = 63 × 7/45 × 7 = 441/315 - Subtract the two like fractions:
270/315 - 441/315 = 270 - 441/315 = -171/315 - After reducing the fraction, the answer is -19/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-63/45 6/14-63/45 6/7-63/90 18/7-63/45 6/21-63/45 30/7-63/45 6/35-63/45 42/7-63/45 6/49-63/45