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Add 70/72 and 4/63

70/72 + 4/63 is 29/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    70/72 = 70 × 7/72 × 7 = 490/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    4/63 = 4 × 8/63 × 8 = 32/504
  4. Add the two like fractions:
    490/504 + 32/504 = 490 + 32/504 = 522/504
  5. 522/504 simplified gives 29/28
  6. So, 70/72 + 4/63 = 29/28
    In mixed form: 11/28

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