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Add 10/70 and 20/30

10/70 + 20/30 is 17/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 30 is 210
  2. For the 1st fraction, since 70 × 3 = 210,
    10/70 = 10 × 3/70 × 3 = 30/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    20/30 = 20 × 7/30 × 7 = 140/210
  4. Add the two fractions:
    30/210 + 140/210 = 30 + 140/210 = 170/210
  5. After reducing the fraction, the answer is 17/21

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