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Add 18/70 and 20/72

18/70 + 20/72 is 337/630.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 72 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 70 × 36 = 2520,
    18/70 = 18 × 36/70 × 36 = 648/2520
  3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
    20/72 = 20 × 35/72 × 35 = 700/2520
  4. Add the two like fractions:
    648/2520 + 700/2520 = 648 + 700/2520 = 1348/2520
  5. 1348/2520 simplified gives 337/630
  6. So, 18/70 + 20/72 = 337/630

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