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Subtract 90/64 from 10/40

1st number: 10/40, 2nd number: 1 26/64

10/40 - 90/64 is -37/32.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 64 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 40 × 8 = 320,
    10/40 = 10 × 8/40 × 8 = 80/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    90/64 = 90 × 5/64 × 5 = 450/320
  4. Subtract the two like fractions:
    80/320 - 450/320 = 80 - 450/320 = -370/320
  5. After reducing the fraction, the answer is -37/32

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