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Add 21/75 and 3/7

21/75 + 3/7 is 124/175.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 7 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 75 × 7 = 525,
    21/75 = 21 × 7/75 × 7 = 147/525
  3. Likewise, for the 2nd fraction, since 7 × 75 = 525,
    3/7 = 3 × 75/7 × 75 = 225/525
  4. Add the two like fractions:
    147/525 + 225/525 = 147 + 225/525 = 372/525
  5. 372/525 simplified gives 124/175
  6. So, 21/75 + 3/7 = 124/175

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