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Add 21/27 and 75/20

1st number: 21/27, 2nd number: 3 15/20

21/27 + 75/20 is 163/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 20 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 20 × 27 = 540,
    75/20 = 75 × 27/20 × 27 = 2025/540
  4. Add the two like fractions:
    420/540 + 2025/540 = 420 + 2025/540 = 2445/540
  5. 2445/540 simplified gives 163/36
  6. So, 21/27 + 75/20 = 163/36
    In mixed form: 419/36

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