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Add 2/21 and 84/90

2/21 + 84/90 is 36/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 21 × 30 = 630,
    2/21 = 2 × 30/21 × 30 = 60/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    84/90 = 84 × 7/90 × 7 = 588/630
  4. Add the two like fractions:
    60/630 + 588/630 = 60 + 588/630 = 648/630
  5. 648/630 simplified gives 36/35
  6. So, 2/21 + 84/90 = 36/35
    In mixed form: 11/35

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