Subtract 27/40 from 7/4
1st number: 1 3/4, 2nd number: 27/40
7/4 - 27/40 is 43/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
7/4 = 7 × 10/4 × 10 = 70/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
27/40 = 27 × 1/40 × 1 = 27/40 - Subtract the two like fractions:
70/40 - 27/40 = 70 - 27/40 = 43/40 - In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-27/40 7/4-54/40 7/8-27/40 7/4-27/80 21/4-27/40 7/4-81/40 7/12-27/40 35/4-27/40 7/20-27/40 49/4-27/40 7/28-27/40