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Add 12/70 and 18/63

12/70 + 18/63 is 16/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    12/70 = 12 × 9/70 × 9 = 108/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    18/63 = 18 × 10/63 × 10 = 180/630
  4. Add the two like fractions:
    108/630 + 180/630 = 108 + 180/630 = 288/630
  5. 288/630 simplified gives 16/35
  6. So, 12/70 + 18/63 = 16/35

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