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Add 9/18 and 21/35

9/18 + 21/35 is 11/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 35 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 18 × 35 = 630,
    9/18 = 9 × 35/18 × 35 = 315/630
  3. Likewise, for the 2nd fraction, since 35 × 18 = 630,
    21/35 = 21 × 18/35 × 18 = 378/630
  4. Add the two like fractions:
    315/630 + 378/630 = 315 + 378/630 = 693/630
  5. 693/630 simplified gives 11/10
  6. So, 9/18 + 21/35 = 11/10
    In mixed form: 11/10

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