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Add 90/84 and 42/56

1st number: 1 6/84, 2nd number: 42/56

90/84 + 42/56 is 51/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 56 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    42/56 = 42 × 3/56 × 3 = 126/168
  4. Add the two like fractions:
    180/168 + 126/168 = 180 + 126/168 = 306/168
  5. 306/168 simplified gives 51/28
  6. So, 90/84 + 42/56 = 51/28
    In mixed form: 123/28

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