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Add 42/2 and 20/80

1st number: 21 0/2, 2nd number: 20/80

42/2 + 20/80 is 85/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 2 × 40 = 80,
    42/2 = 42 × 40/2 × 40 = 1680/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    20/80 = 20 × 1/80 × 1 = 20/80
  4. Add the two like fractions:
    1680/80 + 20/80 = 1680 + 20/80 = 1700/80
  5. 1700/80 simplified gives 85/4
  6. So, 42/2 + 20/80 = 85/4
    In mixed form: 211/4

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