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Add 90/12 and 6/72

1st number: 7 6/12, 2nd number: 6/72

90/12 + 6/72 is 91/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 72 is 72
  2. For the 1st fraction, since 12 × 6 = 72,
    90/12 = 90 × 6/12 × 6 = 540/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    6/72 = 6 × 1/72 × 1 = 6/72
  4. Add the two fractions:
    540/72 + 6/72 = 540 + 6/72 = 546/72
  5. After reducing the fraction, the answer is 91/12
  6. In mixed form: 77/12

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