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Add 8/20 and 45/84

8/20 + 45/84 is 131/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    8/20 = 8 × 21/20 × 21 = 168/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    45/84 = 45 × 5/84 × 5 = 225/420
  4. Add the two like fractions:
    168/420 + 225/420 = 168 + 225/420 = 393/420
  5. 393/420 simplified gives 131/140
  6. So, 8/20 + 45/84 = 131/140

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