Subtract 45/20 from 27/16
1st number: 1 11/16, 2nd number: 2 5/20
27/16 - 45/20 is -9/16.
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,
27/16 = 27 × 5/16 × 5 = 135/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
45/20 = 45 × 4/20 × 4 = 180/80 - Subtract the two like fractions:
135/80 - 180/80 = 135 - 180/80 = -45/80 - After reducing the fraction, the answer is -9/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16-45/20 27/16-90/20 27/32-45/20 27/16-45/40 81/16-45/20 27/48-45/20 27/16-45/60 27/80-45/20