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Add 20/45 and 21/6

1st number: 20/45, 2nd number: 3 3/6

20/45 + 21/6 is 71/18.

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,
    20/45 = 20 × 2/45 × 2 = 40/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    21/6 = 21 × 15/6 × 15 = 315/90
  4. Add the two fractions:
    40/90 + 315/90 = 40 + 315/90 = 355/90
  5. After reducing the fraction, the answer is 71/18
  6. In mixed form: 317/18

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