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Add 21/24 and 60/63

21/24 + 60/63 is 307/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 24 × 21 = 504,
    21/24 = 21 × 21/24 × 21 = 441/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    60/63 = 60 × 8/63 × 8 = 480/504
  4. Add the two like fractions:
    441/504 + 480/504 = 441 + 480/504 = 921/504
  5. 921/504 simplified gives 307/168
  6. So, 21/24 + 60/63 = 307/168
    In mixed form: 1139/168

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