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Subtract 60/70 from 30/64

30/64 - 60/70 is -87/224.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 70 is 2240

    Next, find the equivalent fraction of both fractional numbers with denominator 2240
  2. For the 1st fraction, since 64 × 35 = 2240,
    30/64 = 30 × 35/64 × 35 = 1050/2240
  3. Likewise, for the 2nd fraction, since 70 × 32 = 2240,
    60/70 = 60 × 32/70 × 32 = 1920/2240
  4. Subtract the two like fractions:
    1050/2240 - 1920/2240 = 1050 - 1920/2240 = -870/2240
  5. After reducing the fraction, the answer is -87/224

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