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Add 75/84 and 45/90

75/84 + 45/90 is 39/28.

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,
    75/84 = 75 × 15/84 × 15 = 1125/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    45/90 = 45 × 14/90 × 14 = 630/1260
  4. Add the two like fractions:
    1125/1260 + 630/1260 = 1125 + 630/1260 = 1755/1260
  5. 1755/1260 simplified gives 39/28
  6. So, 75/84 + 45/90 = 39/28
    In mixed form: 111/28

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