Subtract 45/9 from 35/20
1st number: 1 15/20, 2nd number: 5 0/9
35/20 - 45/9 is -13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 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 9 × 20 = 180,
45/9 = 45 × 20/9 × 20 = 900/180 - Subtract the two like fractions:
315/180 - 900/180 = 315 - 900/180 = -585/180 - After reducing the fraction, the answer is -13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-45/9 35/20-90/9 35/40-45/9 35/20-45/18 35/60-45/9 35/20-45/27 35/20-45/63