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Add 20/5 and 84/72

1st number: 4 0/5, 2nd number: 1 12/72

20/5 + 84/72 is 31/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 72 is 360
  2. For the 1st fraction, since 5 × 72 = 360,
    20/5 = 20 × 72/5 × 72 = 1440/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    84/72 = 84 × 5/72 × 5 = 420/360
  4. Add the two fractions:
    1440/360 + 420/360 = 1440 + 420/360 = 1860/360
  5. After reducing the fraction, the answer is 31/6
  6. In mixed form: 51/6

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