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Add 12/70 and 3/20

12/70 + 3/20 is 9/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 70 × 2 = 140,
    12/70 = 12 × 2/70 × 2 = 24/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    3/20 = 3 × 7/20 × 7 = 21/140
  4. Add the two like fractions:
    24/140 + 21/140 = 24 + 21/140 = 45/140
  5. 45/140 simplified gives 9/28
  6. So, 12/70 + 3/20 = 9/28

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