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Subtract 3/10 from 12/49

12/49 - 3/10 is -27/490.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 10 is 490

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 49 × 10 = 490,
    12/49 = 12 × 10/49 × 10 = 120/490
  3. Likewise, for the 2nd fraction, since 10 × 49 = 490,
    3/10 = 3 × 49/10 × 49 = 147/490
  4. Subtract the two like fractions:
    120/490 - 147/490 = 120 - 147/490 = -27/490

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