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Add 21/90 and 54/7

1st number: 21/90, 2nd number: 7 5/7

21/90 + 54/7 is 1669/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 7 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 7 × 90 = 630,
    54/7 = 54 × 90/7 × 90 = 4860/630
  4. Add the two like fractions:
    147/630 + 4860/630 = 147 + 4860/630 = 5007/630
  5. 5007/630 simplified gives 1669/210
  6. So, 21/90 + 54/7 = 1669/210
    In mixed form: 7199/210

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