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Subtract 3/64 from 21/10

1st number: 2 1/10, 2nd number: 3/64

21/10 - 3/64 is 657/320.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 64 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 10 × 32 = 320,
    21/10 = 21 × 32/10 × 32 = 672/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    3/64 = 3 × 5/64 × 5 = 15/320
  4. Subtract the two like fractions:
    672/320 - 15/320 = 672 - 15/320 = 657/320
  5. In mixed form: 217/320

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