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Subtract 45/21 from 5/56

1st number: 5/56, 2nd number: 2 3/21

5/56 - 45/21 is -115/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    5/56 = 5 × 3/56 × 3 = 15/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    45/21 = 45 × 8/21 × 8 = 360/168
  4. Subtract the two like fractions:
    15/168 - 360/168 = 15 - 360/168 = -345/168
  5. After reducing the fraction, the answer is -115/56

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