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Add 20/18 and 56/15

1st number: 1 2/18, 2nd number: 3 11/15

20/18 + 56/15 is 218/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 15 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    20/18 = 20 × 5/18 × 5 = 100/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    56/15 = 56 × 6/15 × 6 = 336/90
  4. Add the two like fractions:
    100/90 + 336/90 = 100 + 336/90 = 436/90
  5. 436/90 simplified gives 218/45
  6. So, 20/18 + 56/15 = 218/45
    In mixed form: 438/45

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