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Subtract 36/64 from 90/20

1st number: 4 10/20, 2nd number: 36/64

90/20 - 36/64 is 63/16.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 64 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 20 × 16 = 320,
    90/20 = 90 × 16/20 × 16 = 1440/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    36/64 = 36 × 5/64 × 5 = 180/320
  4. Subtract the two like fractions:
    1440/320 - 180/320 = 1440 - 180/320 = 1260/320
  5. After reducing the fraction, the answer is 63/16
  6. In mixed form: 315/16

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