Answers

Subtract 90/27 from 63/35

1^st number: 1 28/35, 2^nd number: 3 9/27

63/35 - 90/27 is -23/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 27 is 945
   
   Next, find the equivalent fraction of both fractional numbers with denominator 945
2. For the 1st fraction, since 35 × 27 = 945,
   63/35 = 63 × 27/35 × 27 = 1701/945
3. Likewise, for the 2nd fraction, since 27 × 35 = 945,
   90/27 = 90 × 35/27 × 35 = 3150/945
4. Subtract the two like fractions:
   1701/945 - 3150/945 = 1701 - 3150/945 = -1449/945
5. After reducing the fraction, the answer is -23/15

MathStep (Works offline)

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

Related: ⁶³/₇₀-⁹⁰/₂₇ ⁶³/₃₅-⁹⁰/₅₄ ⁶³/₃₅-⁹⁰/₈₁

Subtract Fractions Calculator