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Add 21/27 and 4/60

21/27 + 4/60 is 38/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 60 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 27 × 20 = 540,
    21/27 = 21 × 20/27 × 20 = 420/540
  3. Likewise, for the 2nd fraction, since 60 × 9 = 540,
    4/60 = 4 × 9/60 × 9 = 36/540
  4. Add the two like fractions:
    420/540 + 36/540 = 420 + 36/540 = 456/540
  5. 456/540 simplified gives 38/45
  6. So, 21/27 + 4/60 = 38/45

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