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Add 48/72 and 21/84

48/72 + 21/84 is 11/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 84 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    48/72 = 48 × 7/72 × 7 = 336/504
  3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
    21/84 = 21 × 6/84 × 6 = 126/504
  4. Add the two like fractions:
    336/504 + 126/504 = 336 + 126/504 = 462/504
  5. 462/504 simplified gives 11/12
  6. So, 48/72 + 21/84 = 11/12

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