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Add 27/21 and 54/90

1st number: 1 6/21, 2nd number: 54/90

27/21 + 54/90 is 66/35.

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,
    27/21 = 27 × 30/21 × 30 = 810/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    54/90 = 54 × 7/90 × 7 = 378/630
  4. Add the two like fractions:
    810/630 + 378/630 = 810 + 378/630 = 1188/630
  5. 1188/630 simplified gives 66/35
  6. So, 27/21 + 54/90 = 66/35
    In mixed form: 131/35

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