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Add 35/75 and 21/90

35/75 + 21/90 is 7/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 75 × 6 = 450,
    35/75 = 35 × 6/75 × 6 = 210/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    21/90 = 21 × 5/90 × 5 = 105/450
  4. Add the two like fractions:
    210/450 + 105/450 = 210 + 105/450 = 315/450
  5. 315/450 simplified gives 7/10
  6. So, 35/75 + 21/90 = 7/10

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