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Add 25/45 and 21/84

25/45 + 21/84 is 29/36.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 45 × 28 = 1260,
    25/45 = 25 × 28/45 × 28 = 700/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    21/84 = 21 × 15/84 × 15 = 315/1260
  4. Add the two like fractions:
    700/1260 + 315/1260 = 700 + 315/1260 = 1015/1260
  5. 1015/1260 simplified gives 29/36
  6. So, 25/45 + 21/84 = 29/36

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