Subtract 81/3 from 80/8
1st number: 10 0/8, 2nd number: 27 0/3
80/8 - 81/3 is -17/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 3 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
80/8 = 80 × 3/8 × 3 = 240/24 - Likewise, for the 2nd fraction, since 3 × 8 = 24,
81/3 = 81 × 8/3 × 8 = 648/24 - Subtract the two like fractions:
240/24 - 648/24 = 240 - 648/24 = -408/24 - After reducing the fraction, the answer is -17/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/16-81/3 80/8-81/6 80/24-81/3 80/8-81/9 80/40-81/3 80/8-81/15 80/56-81/3 80/8-81/21