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Add 30/70 and 20/63

30/70 + 20/63 is 47/63.

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,
    30/70 = 30 × 9/70 × 9 = 270/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    20/63 = 20 × 10/63 × 10 = 200/630
  4. Add the two like fractions:
    270/630 + 200/630 = 270 + 200/630 = 470/630
  5. 470/630 simplified gives 47/63
  6. So, 30/70 + 20/63 = 47/63

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