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Add 21/10 and 9/70

1st number: 2 1/10, 2nd number: 9/70

21/10 + 9/70 is 78/35.

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,
    9/70 = 9 × 1/70 × 1 = 9/70
  4. Add the two fractions:
    147/70 + 9/70 = 147 + 9/70 = 156/70
  5. 156/70 simplified gives 78/35
  6. So, 21/10 + 9/70 = 78/35
    In mixed form: 28/35

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