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Add 56/84 and 84/90

56/84 + 84/90 is 8/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    56/84 = 56 × 15/84 × 15 = 840/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    84/90 = 84 × 14/90 × 14 = 1176/1260
  4. Add the two like fractions:
    840/1260 + 1176/1260 = 840 + 1176/1260 = 2016/1260
  5. 2016/1260 simplified gives 8/5
  6. So, 56/84 + 84/90 = 8/5
    In mixed form: 13/5

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