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Subtract 3/72 from 90/14

1st number: 6 6/14, 2nd number: 3/72

90/14 - 3/72 is 1073/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 14 × 36 = 504,
    90/14 = 90 × 36/14 × 36 = 3240/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    3/72 = 3 × 7/72 × 7 = 21/504
  4. Subtract the two like fractions:
    3240/504 - 21/504 = 3240 - 21/504 = 3219/504
  5. After reducing the fraction, the answer is 1073/168
  6. In mixed form: 665/168

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