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Subtract 8/90 from 12/56

12/56 - 8/90 is 79/630.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    12/56 = 12 × 45/56 × 45 = 540/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    8/90 = 8 × 28/90 × 28 = 224/2520
  4. Subtract the two fractions:
    540/2520 - 224/2520 = 540 - 224/2520 = 316/2520
  5. After reducing the fraction, the answer is 79/630

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