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Add 42/90 and 25/12

1st number: 42/90, 2nd number: 2 1/12

42/90 + 25/12 is 51/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    42/90 = 42 × 2/90 × 2 = 84/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    25/12 = 25 × 15/12 × 15 = 375/180
  4. Add the two like fractions:
    84/180 + 375/180 = 84 + 375/180 = 459/180
  5. 459/180 simplified gives 51/20
  6. So, 42/90 + 25/12 = 51/20
    In mixed form: 211/20

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