Subtract 80/56 from 6/90
1st number: 6/90, 2nd number: 1 24/56
6/90 - 80/56 is -143/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
6/90 = 6 × 28/90 × 28 = 168/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
80/56 = 80 × 45/56 × 45 = 3600/2520 - Subtract the two like fractions:
168/2520 - 3600/2520 = 168 - 3600/2520 = -3432/2520 - After reducing the fraction, the answer is -143/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/90-80/56 18/90-80/56 30/90-80/56 42/90-80/56