Subtract 40/7 from 6/45
1st number: 6/45, 2nd number: 5 5/7
6/45 - 40/7 is -586/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
6/45 = 6 × 7/45 × 7 = 42/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
40/7 = 40 × 45/7 × 45 = 1800/315 - Subtract the two like fractions:
42/315 - 1800/315 = 42 - 1800/315 = -1758/315 - After reducing the fraction, the answer is -586/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/45-40/7 6/45-80/7 6/90-40/7 6/45-40/14 18/45-40/7 6/45-40/21 30/45-40/7 6/45-40/35 42/45-40/7 6/45-40/49