Subtract 20/56 from 6/80
6/80 - 20/56 is -79/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 56 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
6/80 = 6 × 7/80 × 7 = 42/560 - Likewise, for the 2nd fraction, since 56 × 10 = 560,
20/56 = 20 × 10/56 × 10 = 200/560 - Subtract the two like fractions:
42/560 - 200/560 = 42 - 200/560 = -158/560 - After reducing the fraction, the answer is -79/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80-20/56 6/80-40/56 18/80-20/56 6/80-60/56 30/80-20/56 42/80-20/56