Subtract 15/40 from 20/14
1st number: 1 6/14, 2nd number: 15/40
20/14 - 15/40 is 59/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
20/14 = 20 × 20/14 × 20 = 400/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
15/40 = 15 × 7/40 × 7 = 105/280 - Subtract the two like fractions:
400/280 - 105/280 = 400 - 105/280 = 295/280 - After reducing the fraction, the answer is 59/56
- In mixed form: 13/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-15/40 20/14-30/40 20/28-15/40 20/14-15/80 60/14-15/40 20/14-45/40 20/42-15/40 20/14-75/40 20/70-15/40 20/98-15/40