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Add 42/54 and 1/90

42/54 + 1/90 is 71/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 90 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 54 × 5 = 270,
    42/54 = 42 × 5/54 × 5 = 210/270
  3. Likewise, for the 2nd fraction, since 90 × 3 = 270,
    1/90 = 1 × 3/90 × 3 = 3/270
  4. Add the two like fractions:
    210/270 + 3/270 = 210 + 3/270 = 213/270
  5. 213/270 simplified gives 71/90
  6. So, 42/54 + 1/90 = 71/90

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