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Add 20/40 and 35/21

1st number: 20/40, 2nd number: 1 14/21

20/40 + 35/21 is 13/6.

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,
    20/40 = 20 × 21/40 × 21 = 420/840
  3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
    35/21 = 35 × 40/21 × 40 = 1400/840
  4. Add the two like fractions:
    420/840 + 1400/840 = 420 + 1400/840 = 1820/840
  5. 1820/840 simplified gives 13/6
  6. So, 20/40 + 35/21 = 13/6
    In mixed form: 21/6

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