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Subtract 27/64 from 30/20

1st number: 1 10/20, 2nd number: 27/64

30/20 - 27/64 is 69/64.

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,
    30/20 = 30 × 16/20 × 16 = 480/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    27/64 = 27 × 5/64 × 5 = 135/320
  4. Subtract the two like fractions:
    480/320 - 135/320 = 480 - 135/320 = 345/320
  5. After reducing the fraction, the answer is 69/64
  6. In mixed form: 15/64

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