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Add 84/5 and 20/72

1st number: 16 4/5, 2nd number: 20/72

84/5 + 20/72 is 1537/90.

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,
    84/5 = 84 × 72/5 × 72 = 6048/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    20/72 = 20 × 5/72 × 5 = 100/360
  4. Add the two fractions:
    6048/360 + 100/360 = 6048 + 100/360 = 6148/360
  5. 6148/360 simplified gives 1537/90
  6. So, 84/5 + 20/72 = 1537/90
    In mixed form: 177/90

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