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Add 4/84 and 2/80

4/84 + 2/80 is 61/840.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 80 is 1680
  2. For the 1st fraction, since 84 × 20 = 1680,
    4/84 = 4 × 20/84 × 20 = 80/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    2/80 = 2 × 21/80 × 21 = 42/1680
  4. Add the two fractions:
    80/1680 + 42/1680 = 80 + 42/1680 = 122/1680
  5. After reducing the fraction, the answer is 61/840

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