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Add 42/15 and 20/36

1st number: 2 12/15, 2nd number: 20/36

42/15 + 20/36 is 151/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 36 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 15 × 12 = 180,
    42/15 = 42 × 12/15 × 12 = 504/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    20/36 = 20 × 5/36 × 5 = 100/180
  4. Add the two like fractions:
    504/180 + 100/180 = 504 + 100/180 = 604/180
  5. 604/180 simplified gives 151/45
  6. So, 42/15 + 20/36 = 151/45
    In mixed form: 316/45

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