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Add 30/21 and 3/70

1st number: 1 9/21, 2nd number: 3/70

30/21 + 3/70 is 103/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    30/21 = 30 × 10/21 × 10 = 300/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    3/70 = 3 × 3/70 × 3 = 9/210
  4. Add the two like fractions:
    300/210 + 9/210 = 300 + 9/210 = 309/210
  5. 309/210 simplified gives 103/70
  6. So, 30/21 + 3/70 = 103/70
    In mixed form: 133/70

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