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Add 5/21 and 35/80

5/21 + 35/80 is 227/336.

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,
    35/80 = 35 × 21/80 × 21 = 735/1680
  4. Add the two like fractions:
    400/1680 + 735/1680 = 400 + 735/1680 = 1135/1680
  5. 1135/1680 simplified gives 227/336
  6. So, 5/21 + 35/80 = 227/336

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