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Add 20/45 and 1/70

20/45 + 1/70 is 289/630.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 45 × 14 = 630,
    20/45 = 20 × 14/45 × 14 = 280/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    1/70 = 1 × 9/70 × 9 = 9/630
  4. Add the two like fractions:
    280/630 + 9/630 = 280 + 9/630 = 289/630
  5. So, 20/45 + 1/70 = 289/630

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