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Add 42/28 and 15/90

1st number: 1 14/28, 2nd number: 15/90

42/28 + 15/90 is 5/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    42/28 = 42 × 45/28 × 45 = 1890/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    15/90 = 15 × 14/90 × 14 = 210/1260
  4. Add the two like fractions:
    1890/1260 + 210/1260 = 1890 + 210/1260 = 2100/1260
  5. 2100/1260 simplified gives 5/3
  6. So, 42/28 + 15/90 = 5/3
    In mixed form: 12/3

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