Subtract 35/10 from 90/45
1st number: 2 0/45, 2nd number: 3 5/10
90/45 - 35/10 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
90/45 = 90 × 2/45 × 2 = 180/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
35/10 = 35 × 9/10 × 9 = 315/90 - Subtract the two like fractions:
180/90 - 315/90 = 180 - 315/90 = -135/90 - After reducing the fraction, the answer is -3/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45-70/10 90/45-35/20 90/45-35/30 90/45-35/50 90/45-35/70