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Subtract 12/70 from 56/90

56/90 - 12/70 is 142/315.

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,
    56/90 = 56 × 7/90 × 7 = 392/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    12/70 = 12 × 9/70 × 9 = 108/630
  4. Subtract the two fractions:
    392/630 - 108/630 = 392 - 108/630 = 284/630
  5. After reducing the fraction, the answer is 142/315

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