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Add 18/27 and 30/70

18/27 + 30/70 is 23/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 70 is 1890
  2. For the 1st fraction, since 27 × 70 = 1890,
    18/27 = 18 × 70/27 × 70 = 1260/1890
  3. Likewise, for the 2nd fraction, since 70 × 27 = 1890,
    30/70 = 30 × 27/70 × 27 = 810/1890
  4. Add the two fractions:
    1260/1890 + 810/1890 = 1260 + 810/1890 = 2070/1890
  5. 2070/1890 simplified gives 23/21
  6. So, 18/27 + 30/70 = 23/21
    In mixed form: 12/21

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