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Add 35/21 and 18/20

1st number: 1 14/21, 2nd number: 18/20

35/21 + 18/20 is 77/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 20 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    35/21 = 35 × 20/21 × 20 = 700/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    18/20 = 18 × 21/20 × 21 = 378/420
  4. Add the two fractions:
    700/420 + 378/420 = 700 + 378/420 = 1078/420
  5. After reducing the fraction, the answer is 77/30
  6. In mixed form: 217/30

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