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Add 21/75 and 18/35

21/75 + 18/35 is 139/175.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 35 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 35 × 15 = 525,
    18/35 = 18 × 15/35 × 15 = 270/525
  4. Add the two like fractions:
    147/525 + 270/525 = 147 + 270/525 = 417/525
  5. 417/525 simplified gives 139/175
  6. So, 21/75 + 18/35 = 139/175

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