Subtract 90/10 from 1/2
1st number: 1/2, 2nd number: 9 0/10
1/2 - 90/10 is -17/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
1/2 = 1 × 5/2 × 5 = 5/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
90/10 = 90 × 1/10 × 1 = 90/10 - Subtract the two like fractions:
5/10 - 90/10 = 5 - 90/10 = -85/10 - After reducing the fraction, the answer is -17/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/4-90/10 1/2-90/20 3/2-90/10 1/6-90/10 1/2-90/30 5/2-90/10 1/10-90/10 1/2-90/50 7/2-90/10 1/14-90/10 1/2-90/70