Subtract 40/28 from 8/4
1st number: 2 0/4, 2nd number: 1 12/28
8/4 - 40/28 is 4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
8/4 = 8 × 7/4 × 7 = 56/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
40/28 = 40 × 1/28 × 1 = 40/28 - Subtract the two like fractions:
56/28 - 40/28 = 56 - 40/28 = 16/28 - After reducing the fraction, the answer is 4/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-40/28 8/4-80/28 8/4-40/56 24/4-40/28 8/12-40/28 8/4-40/84 40/4-40/28 8/20-40/28 56/4-40/28 8/28-40/28