Subtract 1/40 from 40/7
1st number: 5 5/7, 2nd number: 1/40
40/7 - 1/40 is 1593/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
40/7 = 40 × 40/7 × 40 = 1600/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
1/40 = 1 × 7/40 × 7 = 7/280 - Subtract the two like fractions:
1600/280 - 7/280 = 1600 - 7/280 = 1593/280 - In mixed form: 5193/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7-1/40 40/7-2/40 40/14-1/40 40/7-1/80 40/7-3/40 40/21-1/40 40/7-5/40 40/35-1/40 40/7-7/40 40/49-1/40