Subtract 90/4 from 4/10
1st number: 4/10, 2nd number: 22 2/4
4/10 - 90/4 is -221/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
4/10 = 4 × 2/10 × 2 = 8/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
90/4 = 90 × 5/4 × 5 = 450/20 - Subtract the two like fractions:
8/20 - 450/20 = 8 - 450/20 = -442/20 - After reducing the fraction, the answer is -221/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10-90/4 4/20-90/4 4/10-90/8 12/10-90/4 4/30-90/4 4/10-90/12 20/10-90/4 4/50-90/4 4/10-90/20 28/10-90/4 4/70-90/4 4/10-90/28