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Add 4/21 and 35/20

1st number: 4/21, 2nd number: 1 15/20

4/21 + 35/20 is 163/84.

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,
    4/21 = 4 × 20/21 × 20 = 80/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    35/20 = 35 × 21/20 × 21 = 735/420
  4. Add the two fractions:
    80/420 + 735/420 = 80 + 735/420 = 815/420
  5. 815/420 simplified gives 163/84
  6. So, 4/21 + 35/20 = 163/84
    In mixed form: 179/84

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