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Add 20/70 and 9/54

20/70 + 9/54 is 19/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 54 is 1890
  2. For the 1st fraction, since 70 × 27 = 1890,
    20/70 = 20 × 27/70 × 27 = 540/1890
  3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
    9/54 = 9 × 35/54 × 35 = 315/1890
  4. Add the two fractions:
    540/1890 + 315/1890 = 540 + 315/1890 = 855/1890
  5. 855/1890 simplified gives 19/42
  6. So, 20/70 + 9/54 = 19/42

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