Answers

Subtract 98/54 from 9/42

1^st number: 9/42, 2^nd number: 1 44/54

9/42 - 98/54 is -605/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   9/42 = 9 × 9/42 × 9 = 81/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   98/54 = 98 × 7/54 × 7 = 686/378
4. Subtract the two like fractions:
   81/378 - 686/378 = 81 - 686/378 = -605/378

MathStep (Works offline)

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

Related: ¹⁸/₄₂-⁹⁸/₅₄ ⁹/₈₄-⁹⁸/₅₄ ²⁷/₄₂-⁹⁸/₅₄ ⁴⁵/₄₂-⁹⁸/₅₄ ⁶³/₄₂-⁹⁸/₅₄

Subtract Fractions Calculator