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Add 5/84 and 8/40

5/84 + 8/40 is 109/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 40 is 840
  2. For the 1st fraction, since 84 × 10 = 840,
    5/84 = 5 × 10/84 × 10 = 50/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    8/40 = 8 × 21/40 × 21 = 168/840
  4. Add the two fractions:
    50/840 + 168/840 = 50 + 168/840 = 218/840
  5. After reducing the fraction, the answer is 109/420

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