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Add 1/21 and 8/70

1/21 + 8/70 is 17/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    1/21 = 1 × 10/21 × 10 = 10/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    8/70 = 8 × 3/70 × 3 = 24/210
  4. Add the two fractions:
    10/210 + 24/210 = 10 + 24/210 = 34/210
  5. After reducing the fraction, the answer is 17/105

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