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Subtract 42/64 from 21/4

1st number: 5 1/4, 2nd number: 42/64

21/4 - 42/64 is 147/32.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 64 is 64

    Next, find the equivalent fraction of both fractional numbers with denominator 64
  2. For the 1st fraction, since 4 × 16 = 64,
    21/4 = 21 × 16/4 × 16 = 336/64
  3. Likewise, for the 2nd fraction, since 64 × 1 = 64,
    42/64 = 42 × 1/64 × 1 = 42/64
  4. Subtract the two like fractions:
    336/64 - 42/64 = 336 - 42/64 = 294/64
  5. After reducing the fraction, the answer is 147/32
  6. In mixed form: 419/32

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