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Add 72/45 and 21/6

1st number: 1 27/45, 2nd number: 3 3/6

72/45 + 21/6 is 51/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 6 is 90
  2. For the 1st fraction, since 45 × 2 = 90,
    72/45 = 72 × 2/45 × 2 = 144/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    21/6 = 21 × 15/6 × 15 = 315/90
  4. Add the two fractions:
    144/90 + 315/90 = 144 + 315/90 = 459/90
  5. After reducing the fraction, the answer is 51/10
  6. In mixed form: 51/10

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