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Add 21/45 and 90/27

1st number: 21/45, 2nd number: 3 9/27

21/45 + 90/27 is 19/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 27 is 135
  2. For the 1st fraction, since 45 × 3 = 135,
    21/45 = 21 × 3/45 × 3 = 63/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    90/27 = 90 × 5/27 × 5 = 450/135
  4. Add the two fractions:
    63/135 + 450/135 = 63 + 450/135 = 513/135
  5. After reducing the fraction, the answer is 19/5
  6. In mixed form: 34/5

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