Subtract 27/90 from 4/2
1st number: 2 0/2, 2nd number: 27/90
4/2 - 27/90 is 17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
4/2 = 4 × 45/2 × 45 = 180/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
27/90 = 27 × 1/90 × 1 = 27/90 - Subtract the two like fractions:
180/90 - 27/90 = 180 - 27/90 = 153/90 - After reducing the fraction, the answer is 17/10
- In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/2-27/90 4/2-54/90 12/2-27/90 4/2-81/90 4/6-27/90 20/2-27/90 4/10-27/90 28/2-27/90 4/14-27/90