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Add 90/27 and 21/70

1st number: 3 9/27, 2nd number: 21/70

90/27 + 21/70 is 109/30.

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,
    90/27 = 90 × 70/27 × 70 = 6300/1890
  3. Likewise, for the 2nd fraction, since 70 × 27 = 1890,
    21/70 = 21 × 27/70 × 27 = 567/1890
  4. Add the two fractions:
    6300/1890 + 567/1890 = 6300 + 567/1890 = 6867/1890
  5. After reducing the fraction, the answer is 109/30
  6. In mixed form: 319/30

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