Subtract 27/90 from 40/8
1st number: 5 0/8, 2nd number: 27/90
40/8 - 27/90 is 47/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
40/8 = 40 × 45/8 × 45 = 1800/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
27/90 = 27 × 4/90 × 4 = 108/360 - Subtract the two like fractions:
1800/360 - 108/360 = 1800 - 108/360 = 1692/360 - After reducing the fraction, the answer is 47/10
- In mixed form: 47/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8-27/90 40/8-54/90 40/16-27/90 40/8-81/90 40/24-27/90 40/56-27/90