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Add 21/75 and 12/18

21/75 + 12/18 is 71/75.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 18 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 75 × 6 = 450,
    21/75 = 21 × 6/75 × 6 = 126/450
  3. Likewise, for the 2nd fraction, since 18 × 25 = 450,
    12/18 = 12 × 25/18 × 25 = 300/450
  4. Add the two like fractions:
    126/450 + 300/450 = 126 + 300/450 = 426/450
  5. 426/450 simplified gives 71/75
  6. So, 21/75 + 12/18 = 71/75

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