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Add 45/84 and 25/40

45/84 + 25/40 is 65/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 84 × 10 = 840,
    45/84 = 45 × 10/84 × 10 = 450/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    25/40 = 25 × 21/40 × 21 = 525/840
  4. Add the two like fractions:
    450/840 + 525/840 = 450 + 525/840 = 975/840
  5. 975/840 simplified gives 65/56
  6. So, 45/84 + 25/40 = 65/56
    In mixed form: 19/56

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