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Add 21/70 and 9/7

1st number: 21/70, 2nd number: 1 2/7

21/70 + 9/7 is 111/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 7 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 70 × 1 = 70,
    21/70 = 21 × 1/70 × 1 = 21/70
  3. Likewise, for the 2nd fraction, since 7 × 10 = 70,
    9/7 = 9 × 10/7 × 10 = 90/70
  4. Add the two like fractions:
    21/70 + 90/70 = 21 + 90/70 = 111/70
  5. So, 21/70 + 9/7 = 111/70
    In mixed form: 141/70

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