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Add 90/15 and 7/84

1st number: 6 0/15, 2nd number: 7/84

90/15 + 7/84 is 73/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    90/15 = 90 × 28/15 × 28 = 2520/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    7/84 = 7 × 5/84 × 5 = 35/420
  4. Add the two like fractions:
    2520/420 + 35/420 = 2520 + 35/420 = 2555/420
  5. 2555/420 simplified gives 73/12
  6. So, 90/15 + 7/84 = 73/12
    In mixed form: 61/12

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