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Add 48/70 and 84/90

48/70 + 84/90 is 34/21.

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,
    48/70 = 48 × 9/70 × 9 = 432/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    84/90 = 84 × 7/90 × 7 = 588/630
  4. Add the two like fractions:
    432/630 + 588/630 = 432 + 588/630 = 1020/630
  5. 1020/630 simplified gives 34/21
  6. So, 48/70 + 84/90 = 34/21
    In mixed form: 113/21

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