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Add 6/20 and 42/80

6/20 + 42/80 is 33/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 80 is 80
  2. For the 1st fraction, since 20 × 4 = 80,
    6/20 = 6 × 4/20 × 4 = 24/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    42/80 = 42 × 1/80 × 1 = 42/80
  4. Add the two fractions:
    24/80 + 42/80 = 24 + 42/80 = 66/80
  5. After reducing the fraction, the answer is 33/40

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