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Add 90/15 and 4/42

1st number: 6 0/15, 2nd number: 4/42

90/15 + 4/42 is 128/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 15 × 14 = 210,
    90/15 = 90 × 14/15 × 14 = 1260/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    4/42 = 4 × 5/42 × 5 = 20/210
  4. Add the two like fractions:
    1260/210 + 20/210 = 1260 + 20/210 = 1280/210
  5. 1280/210 simplified gives 128/21
  6. So, 90/15 + 4/42 = 128/21
    In mixed form: 62/21

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