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Add 4/70 and 84/90

4/70 + 84/90 is 104/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    4/70 = 4 × 9/70 × 9 = 36/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    84/90 = 84 × 7/90 × 7 = 588/630
  4. Add the two like fractions:
    36/630 + 588/630 = 36 + 588/630 = 624/630
  5. 624/630 simplified gives 104/105
  6. So, 4/70 + 84/90 = 104/105

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