Subtract 27/20 from 6/16
1st number: 6/16, 2nd number: 1 7/20
6/16 - 27/20 is -39/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
6/16 = 6 × 5/16 × 5 = 30/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
27/20 = 27 × 4/20 × 4 = 108/80 - Subtract the two like fractions:
30/80 - 108/80 = 30 - 108/80 = -78/80 - After reducing the fraction, the answer is -39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/16-27/20 6/16-54/20 6/32-27/20 6/16-27/40 18/16-27/20 6/16-81/20 6/48-27/20 6/16-27/60 30/16-27/20 6/80-27/20 42/16-27/20