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Add 20/45 and 84/72

1st number: 20/45, 2nd number: 1 12/72

20/45 + 84/72 is 29/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 72 is 360
  2. For the 1st fraction, since 45 × 8 = 360,
    20/45 = 20 × 8/45 × 8 = 160/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    84/72 = 84 × 5/72 × 5 = 420/360
  4. Add the two fractions:
    160/360 + 420/360 = 160 + 420/360 = 580/360
  5. 580/360 simplified gives 29/18
  6. So, 20/45 + 84/72 = 29/18
    In mixed form: 111/18

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