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Add 18/84 and 4/45

18/84 + 4/45 is 191/630.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 45 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    18/84 = 18 × 15/84 × 15 = 270/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    4/45 = 4 × 28/45 × 28 = 112/1260
  4. Add the two like fractions:
    270/1260 + 112/1260 = 270 + 112/1260 = 382/1260
  5. 382/1260 simplified gives 191/630
  6. So, 18/84 + 4/45 = 191/630

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