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Add 9/21 and 56/90

9/21 + 56/90 is 331/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 21 × 30 = 630,
    9/21 = 9 × 30/21 × 30 = 270/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    56/90 = 56 × 7/90 × 7 = 392/630
  4. Add the two like fractions:
    270/630 + 392/630 = 270 + 392/630 = 662/630
  5. 662/630 simplified gives 331/315
  6. So, 9/21 + 56/90 = 331/315
    In mixed form: 116/315

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