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Add 21/10 and 84/45

1st number: 2 1/10, 2nd number: 1 39/45

21/10 + 84/45 is 119/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    21/10 = 21 × 9/10 × 9 = 189/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    84/45 = 84 × 2/45 × 2 = 168/90
  4. Add the two like fractions:
    189/90 + 168/90 = 189 + 168/90 = 357/90
  5. 357/90 simplified gives 119/30
  6. So, 21/10 + 84/45 = 119/30
    In mixed form: 329/30

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