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Add 21/4 and 5/90

1st number: 5 1/4, 2nd number: 5/90

21/4 + 5/90 is 191/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    21/4 = 21 × 45/4 × 45 = 945/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    5/90 = 5 × 2/90 × 2 = 10/180
  4. Add the two like fractions:
    945/180 + 10/180 = 945 + 10/180 = 955/180
  5. 955/180 simplified gives 191/36
  6. So, 21/4 + 5/90 = 191/36
    In mixed form: 511/36

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