Subtract 40/7 from 27/4
1st number: 6 3/4, 2nd number: 5 5/7
27/4 - 40/7 is 29/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
27/4 = 27 × 7/4 × 7 = 189/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
40/7 = 40 × 4/7 × 4 = 160/28 - Subtract the two like fractions:
189/28 - 160/28 = 189 - 160/28 = 29/28 - In mixed form: 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4-40/7 27/4-80/7 27/8-40/7 27/4-40/14 81/4-40/7 27/12-40/7 27/4-40/21 27/20-40/7 27/4-40/35 27/28-40/7 27/4-40/49