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Subtract 27/72 from 70/42

1st number: 1 28/42, 2nd number: 27/72

70/42 - 27/72 is 31/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 42 × 12 = 504,
    70/42 = 70 × 12/42 × 12 = 840/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    27/72 = 27 × 7/72 × 7 = 189/504
  4. Subtract the two like fractions:
    840/504 - 189/504 = 840 - 189/504 = 651/504
  5. After reducing the fraction, the answer is 31/24
  6. In mixed form: 17/24

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