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Add 42/30 and 90/54

1st number: 1 12/30, 2nd number: 1 36/54

42/30 + 90/54 is 46/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 30 × 9 = 270,
    42/30 = 42 × 9/30 × 9 = 378/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    90/54 = 90 × 5/54 × 5 = 450/270
  4. Add the two like fractions:
    378/270 + 450/270 = 378 + 450/270 = 828/270
  5. 828/270 simplified gives 46/15
  6. So, 42/30 + 90/54 = 46/15
    In mixed form: 31/15

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