Answers

Subtract 6/42 from 63/18

1^st number: 3 9/18, 2^nd number: 6/42

63/18 - 6/42 is 47/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 42 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   63/18 = 63 × 7/18 × 7 = 441/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   6/42 = 6 × 3/42 × 3 = 18/126
4. Subtract the two like fractions:
   441/126 - 18/126 = 441 - 18/126 = 423/126
5. After reducing the fraction, the answer is 47/14
6. In mixed form: 35/14

MathStep (Works offline)

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

Related: ⁶³/₁₈-¹²/₄₂ ⁶³/₃₆-⁶/₄₂ ⁶³/₁₈-⁶/₈₄ ⁶³/₁₈-¹⁸/₄₂ ⁶³/₅₄-⁶/₄₂ ⁶³/₁₈-³⁰/₄₂ ⁶³/₉₀-⁶/₄₂

Subtract Fractions Calculator