Answers

Subtract 8/63 from 9/10

9/10 - 8/63 is 487/630.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 10 × 63 = 630,
   9/10 = 9 × 63/10 × 63 = 567/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   8/63 = 8 × 10/63 × 10 = 80/630
4. Subtract the two like fractions:
   567/630 - 80/630 = 567 - 80/630 = 487/630

MathStep (Works offline)

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

Related: ¹⁸/₁₀-⁸/₆₃ ⁹/₁₀-¹⁶/₆₃ ⁹/₂₀-⁸/₆₃ ²⁷/₁₀-⁸/₆₃ ⁹/₁₀-²⁴/₆₃ ⁹/₃₀-⁸/₆₃ ⁴⁵/₁₀-⁸/₆₃ ⁹/₁₀-⁴⁰/₆₃ ⁹/₅₀-⁸/₆₃ ⁶³/₁₀-⁸/₆₃ ⁹/₁₀-⁵⁶/₆₃ ⁹/₇₀-⁸/₆₃

Subtract Fractions Calculator