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Add 21/10 and 15/70

1st number: 2 1/10, 2nd number: 15/70

21/10 + 15/70 is 81/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 70 is 70
  2. For the 1st fraction, since 10 × 7 = 70,
    21/10 = 21 × 7/10 × 7 = 147/70
  3. Likewise, for the 2nd fraction, since 70 × 1 = 70,
    15/70 = 15 × 1/70 × 1 = 15/70
  4. Add the two fractions:
    147/70 + 15/70 = 147 + 15/70 = 162/70
  5. After reducing the fraction, the answer is 81/35
  6. In mixed form: 211/35

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