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Add 18/20 and 35/84

18/20 + 35/84 is 79/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420
  2. For the 1st fraction, since 20 × 21 = 420,
    18/20 = 18 × 21/20 × 21 = 378/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    35/84 = 35 × 5/84 × 5 = 175/420
  4. Add the two fractions:
    378/420 + 175/420 = 378 + 175/420 = 553/420
  5. After reducing the fraction, the answer is 79/60
  6. In mixed form: 119/60

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