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Add 45/56 and 63/72

45/56 + 63/72 is 47/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 56 × 9 = 504,
    45/56 = 45 × 9/56 × 9 = 405/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    63/72 = 63 × 7/72 × 7 = 441/504
  4. Add the two like fractions:
    405/504 + 441/504 = 405 + 441/504 = 846/504
  5. 846/504 simplified gives 47/28
  6. So, 45/56 + 63/72 = 47/28
    In mixed form: 119/28

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