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Add 42/2 and 90/5

1st number: 21 0/2, 2nd number: 18 0/5

42/2 + 90/5 is 39/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 5 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 2 × 5 = 10,
    42/2 = 42 × 5/2 × 5 = 210/10
  3. Likewise, for the 2nd fraction, since 5 × 2 = 10,
    90/5 = 90 × 2/5 × 2 = 180/10
  4. Add the two like fractions:
    210/10 + 180/10 = 210 + 180/10 = 390/10
  5. 390/10 simplified gives 39/1
  6. So, 42/2 + 90/5 = 39/1

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