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Add 30/70 and 27/90

30/70 + 27/90 is 51/70.

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,
    30/70 = 30 × 9/70 × 9 = 270/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    27/90 = 27 × 7/90 × 7 = 189/630
  4. Add the two like fractions:
    270/630 + 189/630 = 270 + 189/630 = 459/630
  5. 459/630 simplified gives 51/70
  6. So, 30/70 + 27/90 = 51/70

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