Subtract 63/6 from 80/90
1st number: 80/90, 2nd number: 10 3/6
80/90 - 63/6 is -173/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
80/90 = 80 × 1/90 × 1 = 80/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
63/6 = 63 × 15/6 × 15 = 945/90 - Subtract the two like fractions:
80/90 - 945/90 = 80 - 945/90 = -865/90 - After reducing the fraction, the answer is -173/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90-63/12 80/90-63/18 80/90-63/30 80/90-63/42