Subtract 6/80 from 90/2
1st number: 45 0/2, 2nd number: 6/80
90/2 - 6/80 is 1797/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
90/2 = 90 × 40/2 × 40 = 3600/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
6/80 = 6 × 1/80 × 1 = 6/80 - Subtract the two like fractions:
3600/80 - 6/80 = 3600 - 6/80 = 3594/80 - After reducing the fraction, the answer is 1797/40
- In mixed form: 4437/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-12/80 90/4-6/80 90/2-18/80 90/6-6/80 90/2-30/80 90/10-6/80 90/2-42/80 90/14-6/80