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Add 64/9 and 10/20

1st number: 7 1/9, 2nd number: 10/20

64/9 + 10/20 is 137/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 9 × 20 = 180,
    64/9 = 64 × 20/9 × 20 = 1280/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    10/20 = 10 × 9/20 × 9 = 90/180
  4. Add the two like fractions:
    1280/180 + 90/180 = 1280 + 90/180 = 1370/180
  5. 1370/180 simplified gives 137/18
  6. So, 64/9 + 10/20 = 137/18
    In mixed form: 711/18

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