Subtract 4/7 from 40/28
1st number: 1 12/28, 2nd number: 4/7
40/28 - 4/7 is 6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
40/28 = 40 × 1/28 × 1 = 40/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
4/7 = 4 × 4/7 × 4 = 16/28 - Subtract the two like fractions:
40/28 - 16/28 = 40 - 16/28 = 24/28 - After reducing the fraction, the answer is 6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-4/7 40/28-8/7 40/56-4/7 40/28-4/14 40/28-12/7 40/84-4/7 40/28-4/21 40/28-20/7 40/28-4/35 40/28-28/7 40/28-4/49