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Add 5/21 and 6/80

5/21 + 6/80 is 263/840.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 21 × 80 = 1680,
    5/21 = 5 × 80/21 × 80 = 400/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    6/80 = 6 × 21/80 × 21 = 126/1680
  4. Add the two like fractions:
    400/1680 + 126/1680 = 400 + 126/1680 = 526/1680
  5. 526/1680 simplified gives 263/840
  6. So, 5/21 + 6/80 = 263/840

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