Subtract 80/45 from 8/2
1st number: 4 0/2, 2nd number: 1 35/45
8/2 - 80/45 is 20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
8/2 = 8 × 45/2 × 45 = 360/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
80/45 = 80 × 2/45 × 2 = 160/90 - Subtract the two like fractions:
360/90 - 160/90 = 360 - 160/90 = 200/90 - After reducing the fraction, the answer is 20/9
- In mixed form: 22/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/2-80/45 8/4-80/45 8/2-80/90 24/2-80/45 8/6-80/45 40/2-80/45 8/10-80/45 56/2-80/45 8/14-80/45