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Add 90/84 and 21/56

1st number: 1 6/84, 2nd number: 21/56

90/84 + 21/56 is 81/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 56 is 168
  2. For the 1st fraction, since 84 × 2 = 168,
    90/84 = 90 × 2/84 × 2 = 180/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    21/56 = 21 × 3/56 × 3 = 63/168
  4. Add the two fractions:
    180/168 + 63/168 = 180 + 63/168 = 243/168
  5. After reducing the fraction, the answer is 81/56
  6. In mixed form: 125/56

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