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Add 75/84 and 15/70

75/84 + 15/70 is 31/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    75/84 = 75 × 5/84 × 5 = 375/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    15/70 = 15 × 6/70 × 6 = 90/420
  4. Add the two like fractions:
    375/420 + 90/420 = 375 + 90/420 = 465/420
  5. 465/420 simplified gives 31/28
  6. So, 75/84 + 15/70 = 31/28
    In mixed form: 13/28

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