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Add 36/21 and 18/40

1st number: 1 15/21, 2nd number: 18/40

36/21 + 18/40 is 303/140.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 21 × 40 = 840,
    36/21 = 36 × 40/21 × 40 = 1440/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    18/40 = 18 × 21/40 × 21 = 378/840
  4. Add the two like fractions:
    1440/840 + 378/840 = 1440 + 378/840 = 1818/840
  5. 1818/840 simplified gives 303/140
  6. So, 36/21 + 18/40 = 303/140
    In mixed form: 223/140

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