Subtract 20/14 from 45/56
1st number: 45/56, 2nd number: 1 6/14
45/56 - 20/14 is -5/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 14 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
45/56 = 45 × 1/56 × 1 = 45/56 - Likewise, for the 2nd fraction, since 14 × 4 = 56,
20/14 = 20 × 4/14 × 4 = 80/56 - Subtract the two like fractions:
45/56 - 80/56 = 45 - 80/56 = -35/56 - After reducing the fraction, the answer is -5/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56-20/14 45/56-40/14 45/56-20/28 45/56-60/14 45/56-20/42 45/56-20/70 45/56-20/98