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Subtract 48/42 from 21/4

1st number: 5 1/4, 2nd number: 1 6/42

21/4 - 48/42 is 115/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 42 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    21/4 = 21 × 21/4 × 21 = 441/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    48/42 = 48 × 2/42 × 2 = 96/84
  4. Subtract the two fractions:
    441/84 - 96/84 = 441 - 96/84 = 345/84
  5. After reducing the fraction, the answer is 115/28
  6. In mixed form: 43/28

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