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Add 1/18 and 21/70

1/18 + 21/70 is 16/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 18 × 35 = 630,
    1/18 = 1 × 35/18 × 35 = 35/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    21/70 = 21 × 9/70 × 9 = 189/630
  4. Add the two like fractions:
    35/630 + 189/630 = 35 + 189/630 = 224/630
  5. 224/630 simplified gives 16/45
  6. So, 1/18 + 21/70 = 16/45

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