Answers

Subtract 6/27 from 90/70

1^st number: 1 20/70, 2^nd number: 6/27

90/70 - 6/27 is 67/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 27 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 70 × 27 = 1890,
   90/70 = 90 × 27/70 × 27 = 2430/1890
3. Likewise, for the 2nd fraction, since 27 × 70 = 1890,
   6/27 = 6 × 70/27 × 70 = 420/1890
4. Subtract the two like fractions:
   2430/1890 - 420/1890 = 2430 - 420/1890 = 2010/1890
5. After reducing the fraction, the answer is 67/63
6. In mixed form: 14/63

MathStep (Works offline)

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

Related: ⁹⁰/₇₀-¹²/₂₇ ⁹⁰/₇₀-⁶/₅₄ ⁹⁰/₇₀-¹⁸/₂₇ ⁹⁰/₇₀-⁶/₈₁ ⁹⁰/₇₀-³⁰/₂₇ ⁹⁰/₇₀-⁴²/₂₇

Subtract Fractions Calculator