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Add 36/72 and 21/28

36/72 + 21/28 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 28 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    36/72 = 36 × 7/72 × 7 = 252/504
  3. Likewise, for the 2nd fraction, since 28 × 18 = 504,
    21/28 = 21 × 18/28 × 18 = 378/504
  4. Add the two like fractions:
    252/504 + 378/504 = 252 + 378/504 = 630/504
  5. 630/504 simplified gives 5/4
  6. So, 36/72 + 21/28 = 5/4
    In mixed form: 11/4

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