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Add 12/70 and 84/21

1st number: 12/70, 2nd number: 4 0/21

12/70 + 84/21 is 146/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 21 is 210
  2. For the 1st fraction, since 70 × 3 = 210,
    12/70 = 12 × 3/70 × 3 = 36/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    84/21 = 84 × 10/21 × 10 = 840/210
  4. Add the two fractions:
    36/210 + 840/210 = 36 + 840/210 = 876/210
  5. 876/210 simplified gives 146/35
  6. So, 12/70 + 84/21 = 146/35
    In mixed form: 46/35

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