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Add 21/75 and 4/9

21/75 + 4/9 is 163/225.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 9 is 225
  2. For the 1st fraction, since 75 × 3 = 225,
    21/75 = 21 × 3/75 × 3 = 63/225
  3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
    4/9 = 4 × 25/9 × 25 = 100/225
  4. Add the two fractions:
    63/225 + 100/225 = 63 + 100/225 = 163/225
  5. So, 21/75 + 4/9 = 163/225

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