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Add 21/90 and 9/35

21/90 + 9/35 is 103/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 35 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    21/90 = 21 × 7/90 × 7 = 147/630
  3. Likewise, for the 2nd fraction, since 35 × 18 = 630,
    9/35 = 9 × 18/35 × 18 = 162/630
  4. Add the two like fractions:
    147/630 + 162/630 = 147 + 162/630 = 309/630
  5. 309/630 simplified gives 103/210
  6. So, 21/90 + 9/35 = 103/210

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