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Add 36/40 and 50/21

1st number: 36/40, 2nd number: 2 8/21

36/40 + 50/21 is 689/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 21 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    36/40 = 36 × 21/40 × 21 = 756/840
  3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
    50/21 = 50 × 40/21 × 40 = 2000/840
  4. Add the two like fractions:
    756/840 + 2000/840 = 756 + 2000/840 = 2756/840
  5. 2756/840 simplified gives 689/210
  6. So, 36/40 + 50/21 = 689/210
    In mixed form: 359/210

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