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Add 42/80 and 18/25

42/80 + 18/25 is 249/200.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 25 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 80 × 5 = 400,
    42/80 = 42 × 5/80 × 5 = 210/400
  3. Likewise, for the 2nd fraction, since 25 × 16 = 400,
    18/25 = 18 × 16/25 × 16 = 288/400
  4. Add the two like fractions:
    210/400 + 288/400 = 210 + 288/400 = 498/400
  5. 498/400 simplified gives 249/200
  6. So, 42/80 + 18/25 = 249/200
    In mixed form: 149/200

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