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Add 40/21 and 20/36

1st number: 1 19/21, 2nd number: 20/36

40/21 + 20/36 is 155/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252
  2. For the 1st fraction, since 21 × 12 = 252,
    40/21 = 40 × 12/21 × 12 = 480/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    20/36 = 20 × 7/36 × 7 = 140/252
  4. Add the two fractions:
    480/252 + 140/252 = 480 + 140/252 = 620/252
  5. 620/252 simplified gives 155/63
  6. So, 40/21 + 20/36 = 155/63
    In mixed form: 229/63

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