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Add 40/56 and 45/63

40/56 + 45/63 is 10/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 56 × 9 = 504,
    40/56 = 40 × 9/56 × 9 = 360/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    45/63 = 45 × 8/63 × 8 = 360/504
  4. Add the two like fractions:
    360/504 + 360/504 = 360 + 360/504 = 720/504
  5. 720/504 simplified gives 10/7
  6. So, 40/56 + 45/63 = 10/7
    In mixed form: 13/7

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