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Add 20/70 and 18/36

20/70 + 18/36 is 11/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 36 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 70 × 18 = 1260,
    20/70 = 20 × 18/70 × 18 = 360/1260
  3. Likewise, for the 2nd fraction, since 36 × 35 = 1260,
    18/36 = 18 × 35/36 × 35 = 630/1260
  4. Add the two like fractions:
    360/1260 + 630/1260 = 360 + 630/1260 = 990/1260
  5. 990/1260 simplified gives 11/14
  6. So, 20/70 + 18/36 = 11/14

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