Subtract 7/40 from 27/16
1st number: 1 11/16, 2nd number: 7/40
27/16 - 7/40 is 121/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
27/16 = 27 × 5/16 × 5 = 135/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
7/40 = 7 × 2/40 × 2 = 14/80 - Subtract the two like fractions:
135/80 - 14/80 = 135 - 14/80 = 121/80 - In mixed form: 141/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16-7/40 27/16-14/40 27/32-7/40 27/16-7/80 81/16-7/40 27/16-21/40 27/48-7/40 27/16-35/40 27/80-7/40 27/16-49/40