Subtract 8/40 from 27/7
1st number: 3 6/7, 2nd number: 8/40
27/7 - 8/40 is 128/35.
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,
27/7 = 27 × 40/7 × 40 = 1080/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Subtract the two like fractions:
1080/280 - 56/280 = 1080 - 56/280 = 1024/280 - After reducing the fraction, the answer is 128/35
- In mixed form: 323/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7-8/40 27/7-16/40 27/14-8/40 27/7-8/80 81/7-8/40 27/7-24/40 27/21-8/40 27/35-8/40 27/7-56/40 27/49-8/40