Subtract 8/84 from 90/8
1st number: 11 2/8, 2nd number: 8/84
90/8 - 8/84 is 937/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
90/8 = 90 × 21/8 × 21 = 1890/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
8/84 = 8 × 2/84 × 2 = 16/168 - Subtract the two like fractions:
1890/168 - 16/168 = 1890 - 16/168 = 1874/168 - After reducing the fraction, the answer is 937/84
- In mixed form: 1113/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-16/84 90/16-8/84 90/8-24/84 90/24-8/84 90/8-40/84 90/40-8/84 90/8-56/84 90/56-8/84