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Subtract 90/64 from 1/15

1st number: 1/15, 2nd number: 1 26/64

1/15 - 90/64 is -643/480.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 64 is 960

    Next, find the equivalent fraction of both fractional numbers with denominator 960
  2. For the 1st fraction, since 15 × 64 = 960,
    1/15 = 1 × 64/15 × 64 = 64/960
  3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
    90/64 = 90 × 15/64 × 15 = 1350/960
  4. Subtract the two like fractions:
    64/960 - 1350/960 = 64 - 1350/960 = -1286/960
  5. After reducing the fraction, the answer is -643/480

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