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Add 45/72 and 16/21

45/72 + 16/21 is 233/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 21 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    45/72 = 45 × 7/72 × 7 = 315/504
  3. Likewise, for the 2nd fraction, since 21 × 24 = 504,
    16/21 = 16 × 24/21 × 24 = 384/504
  4. Add the two like fractions:
    315/504 + 384/504 = 315 + 384/504 = 699/504
  5. 699/504 simplified gives 233/168
  6. So, 45/72 + 16/21 = 233/168
    In mixed form: 165/168

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