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Add 21/12 and 2/70

1st number: 1 9/12, 2nd number: 2/70

21/12 + 2/70 is 249/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 12 × 35 = 420,
    21/12 = 21 × 35/12 × 35 = 735/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    2/70 = 2 × 6/70 × 6 = 12/420
  4. Add the two like fractions:
    735/420 + 12/420 = 735 + 12/420 = 747/420
  5. 747/420 simplified gives 249/140
  6. So, 21/12 + 2/70 = 249/140
    In mixed form: 1109/140

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