Answers

Subtract 75/45 from 2/18

1^st number: 2/18, 2^nd number: 1 30/45

2/18 - 75/45 is -14/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   2/18 = 2 × 5/18 × 5 = 10/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   75/45 = 75 × 2/45 × 2 = 150/90
4. Subtract the two like fractions:
   10/90 - 150/90 = 10 - 150/90 = -140/90
5. After reducing the fraction, the answer is -14/9

MathStep (Works offline)

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

Related: ⁴/₁₈-⁷⁵/₄₅ ²/₃₆-⁷⁵/₄₅ ²/₁₈-⁷⁵/₉₀ ⁶/₁₈-⁷⁵/₄₅ ²/₅₄-⁷⁵/₄₅ ¹⁰/₁₈-⁷⁵/₄₅ ²/₉₀-⁷⁵/₄₅ ¹⁴/₁₈-⁷⁵/₄₅

Subtract Fractions Calculator