Answers

Subtract 49/81 from 9/8

1^st number: 1 1/8, 2^nd number: 49/81

9/8 - 49/81 is 337/648.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 81 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 8 × 81 = 648,
   9/8 = 9 × 81/8 × 81 = 729/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   49/81 = 49 × 8/81 × 8 = 392/648
4. Subtract the two like fractions:
   729/648 - 392/648 = 729 - 392/648 = 337/648

MathStep (Works offline)

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

Related: ¹⁸/₈-⁴⁹/₈₁ ⁹/₈-⁹⁸/₈₁ ⁹/₁₆-⁴⁹/₈₁ ²⁷/₈-⁴⁹/₈₁ ⁹/₂₄-⁴⁹/₈₁ ⁴⁵/₈-⁴⁹/₈₁ ⁹/₄₀-⁴⁹/₈₁ ⁶³/₈-⁴⁹/₈₁ ⁹/₅₆-⁴⁹/₈₁

Subtract Fractions Calculator