Answers

Subtract 6/54 from 90/63

1^st number: 1 27/63, 2^nd number: 6/54

90/63 - 6/54 is 83/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 63 × 6 = 378,
   90/63 = 90 × 6/63 × 6 = 540/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   6/54 = 6 × 7/54 × 7 = 42/378
4. Subtract the two like fractions:
   540/378 - 42/378 = 540 - 42/378 = 498/378
5. After reducing the fraction, the answer is 83/63
6. In mixed form: 120/63

MathStep (Works offline)

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

Related: ⁹⁰/₆₃-¹²/₅₄ ⁹⁰/₆₃-¹⁸/₅₄ ⁹⁰/₆₃-³⁰/₅₄ ⁹⁰/₆₃-⁴²/₅₄

Subtract Fractions Calculator