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Add 1/20 and 18/84

1/20 + 18/84 is 37/140.

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,
    1/20 = 1 × 21/20 × 21 = 21/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    18/84 = 18 × 5/84 × 5 = 90/420
  4. Add the two fractions:
    21/420 + 90/420 = 21 + 90/420 = 111/420
  5. 111/420 simplified gives 37/140
  6. So, 1/20 + 18/84 = 37/140

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