Subtract 35/90 from 35/20
1st number: 1 15/20, 2nd number: 35/90
35/20 - 35/90 is 49/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
35/20 = 35 × 9/20 × 9 = 315/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
35/90 = 35 × 2/90 × 2 = 70/180 - Subtract the two like fractions:
315/180 - 70/180 = 315 - 70/180 = 245/180 - After reducing the fraction, the answer is 49/36
- In mixed form: 113/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-35/90 35/20-70/90 35/40-35/90 35/60-35/90