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Add 10/84 and 5/20

10/84 + 5/20 is 31/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 20 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    10/84 = 10 × 5/84 × 5 = 50/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    5/20 = 5 × 21/20 × 21 = 105/420
  4. Add the two fractions:
    50/420 + 105/420 = 50 + 105/420 = 155/420
  5. After reducing the fraction, the answer is 31/84

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