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Subtract 84/70 from 80/90

1st number: 80/90, 2nd number: 1 14/70

80/90 - 84/70 is -14/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630
  2. For the 1st fraction, since 90 × 7 = 630,
    80/90 = 80 × 7/90 × 7 = 560/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    84/70 = 84 × 9/70 × 9 = 756/630
  4. Subtract the two fractions:
    560/630 - 756/630 = 560 - 756/630 = -196/630
  5. After reducing the fraction, the answer is -14/45

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