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Add 9/90 and 30/21

1st number: 9/90, 2nd number: 1 9/21

9/90 + 30/21 is 107/70.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    9/90 = 9 × 7/90 × 7 = 63/630
  3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
    30/21 = 30 × 30/21 × 30 = 900/630
  4. Add the two like fractions:
    63/630 + 900/630 = 63 + 900/630 = 963/630
  5. 963/630 simplified gives 107/70
  6. So, 9/90 + 30/21 = 107/70
    In mixed form: 137/70

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