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Add 12/10 and 20/90

1st number: 1 2/10, 2nd number: 20/90

12/10 + 20/90 is 64/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    12/10 = 12 × 9/10 × 9 = 108/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    20/90 = 20 × 1/90 × 1 = 20/90
  4. Add the two like fractions:
    108/90 + 20/90 = 108 + 20/90 = 128/90
  5. 128/90 simplified gives 64/45
  6. So, 12/10 + 20/90 = 64/45
    In mixed form: 119/45

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