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Add 18/21 and 6/30

18/21 + 6/30 is 37/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    18/21 = 18 × 10/21 × 10 = 180/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    6/30 = 6 × 7/30 × 7 = 42/210
  4. Add the two fractions:
    180/210 + 42/210 = 180 + 42/210 = 222/210
  5. After reducing the fraction, the answer is 37/35
  6. In mixed form: 12/35

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