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Add 1/42 and 90/80

1st number: 1/42, 2nd number: 1 10/80

1/42 + 90/80 is 193/168.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 42 × 40 = 1680,
    1/42 = 1 × 40/42 × 40 = 40/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    90/80 = 90 × 21/80 × 21 = 1890/1680
  4. Add the two like fractions:
    40/1680 + 1890/1680 = 40 + 1890/1680 = 1930/1680
  5. 1930/1680 simplified gives 193/168
  6. So, 1/42 + 90/80 = 193/168
    In mixed form: 125/168

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