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Add 2/80 and 4/42

2/80 + 4/42 is 101/840.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 42 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 80 × 21 = 1680,
    2/80 = 2 × 21/80 × 21 = 42/1680
  3. Likewise, for the 2nd fraction, since 42 × 40 = 1680,
    4/42 = 4 × 40/42 × 40 = 160/1680
  4. Add the two like fractions:
    42/1680 + 160/1680 = 42 + 160/1680 = 202/1680
  5. 202/1680 simplified gives 101/840
  6. So, 2/80 + 4/42 = 101/840

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