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Add 21/40 and 75/56

1st number: 21/40, 2nd number: 1 19/56

21/40 + 75/56 is 261/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 56 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    21/40 = 21 × 7/40 × 7 = 147/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    75/56 = 75 × 5/56 × 5 = 375/280
  4. Add the two like fractions:
    147/280 + 375/280 = 147 + 375/280 = 522/280
  5. 522/280 simplified gives 261/140
  6. So, 21/40 + 75/56 = 261/140
    In mixed form: 1121/140

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