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Add 21/30 and 3/70

21/30 + 3/70 is 26/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 70 is 210
  2. For the 1st fraction, since 30 × 7 = 210,
    21/30 = 21 × 7/30 × 7 = 147/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    3/70 = 3 × 3/70 × 3 = 9/210
  4. Add the two fractions:
    147/210 + 9/210 = 147 + 9/210 = 156/210
  5. 156/210 simplified gives 26/35
  6. So, 21/30 + 3/70 = 26/35

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