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Subtract 4/72 from 90/48

1st number: 1 42/48, 2nd number: 4/72

90/48 - 4/72 is 131/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 72 is 144
  2. For the 1st fraction, since 48 × 3 = 144,
    90/48 = 90 × 3/48 × 3 = 270/144
  3. Likewise, for the 2nd fraction, since 72 × 2 = 144,
    4/72 = 4 × 2/72 × 2 = 8/144
  4. Subtract the two fractions:
    270/144 - 8/144 = 270 - 8/144 = 262/144
  5. After reducing the fraction, the answer is 131/72
  6. In mixed form: 159/72

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