Subtract 18/45 from 35/2
1st number: 17 1/2, 2nd number: 18/45
35/2 - 18/45 is 171/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
35/2 = 35 × 45/2 × 45 = 1575/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Subtract the two like fractions:
1575/90 - 36/90 = 1575 - 36/90 = 1539/90 - After reducing the fraction, the answer is 171/10
- In mixed form: 171/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/2-18/45 35/2-36/45 35/4-18/45 35/2-18/90 35/2-54/45 35/6-18/45 35/2-90/45 35/10-18/45 35/14-18/45