Answers

Subtract 45/9 from 90/75

1^st number: 1 15/75, 2^nd number: 5 0/9

90/75 - 45/9 is -19/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 9 is 225
   
   Next, find the equivalent fraction of both fractional numbers with denominator 225
2. For the 1st fraction, since 75 × 3 = 225,
   90/75 = 90 × 3/75 × 3 = 270/225
3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
   45/9 = 45 × 25/9 × 25 = 1125/225
4. Subtract the two like fractions:
   270/225 - 1125/225 = 270 - 1125/225 = -855/225
5. After reducing the fraction, the answer is -19/5

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁹⁰/₇₅-⁹⁰/₉ ⁹⁰/₇₅-⁴⁵/₁₈ ⁹⁰/₇₅-⁴⁵/₂₇ ⁹⁰/₇₅-⁴⁵/₆₃

Subtract Fractions Calculator