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Add 7/90 and 54/21

1st number: 7/90, 2nd number: 2 12/21

7/90 + 54/21 is 1669/630.

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,
    7/90 = 7 × 7/90 × 7 = 49/630
  3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
    54/21 = 54 × 30/21 × 30 = 1620/630
  4. Add the two like fractions:
    49/630 + 1620/630 = 49 + 1620/630 = 1669/630
  5. So, 7/90 + 54/21 = 1669/630
    In mixed form: 2409/630

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