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Add 18/70 and 4/45

18/70 + 4/45 is 109/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 45 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    18/70 = 18 × 9/70 × 9 = 162/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    4/45 = 4 × 14/45 × 14 = 56/630
  4. Add the two like fractions:
    162/630 + 56/630 = 162 + 56/630 = 218/630
  5. 218/630 simplified gives 109/315
  6. So, 18/70 + 4/45 = 109/315

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