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Add 21/70 and 9/10

21/70 + 9/10 is 6/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 10 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 10 × 7 = 70,
    9/10 = 9 × 7/10 × 7 = 63/70
  4. Add the two like fractions:
    21/70 + 63/70 = 21 + 63/70 = 84/70
  5. 84/70 simplified gives 6/5
  6. So, 21/70 + 9/10 = 6/5
    In mixed form: 11/5

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