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Add 20/15 and 49/42

1st number: 1 5/15, 2nd number: 1 7/42

20/15 + 49/42 is 5/2.

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,
    20/15 = 20 × 14/15 × 14 = 280/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    49/42 = 49 × 5/42 × 5 = 245/210
  4. Add the two like fractions:
    280/210 + 245/210 = 280 + 245/210 = 525/210
  5. 525/210 simplified gives 5/2
  6. So, 20/15 + 49/42 = 5/2
    In mixed form: 21/2

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