Subtract 10/90 from 2/4
2/4 - 10/90 is 7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
2/4 = 2 × 45/4 × 45 = 90/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
10/90 = 10 × 2/90 × 2 = 20/180 - Subtract the two like fractions:
90/180 - 20/180 = 90 - 20/180 = 70/180 - After reducing the fraction, the answer is 7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-20/90 2/8-10/90 6/4-10/90 2/4-30/90 2/12-10/90 10/4-10/90 2/4-50/90 2/20-10/90 14/4-10/90 2/4-70/90 2/28-10/90