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Add 20/18 and 42/15

1st number: 1 2/18, 2nd number: 2 12/15

20/18 + 42/15 is 176/45.

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,
    42/15 = 42 × 6/15 × 6 = 252/90
  4. Add the two like fractions:
    100/90 + 252/90 = 100 + 252/90 = 352/90
  5. 352/90 simplified gives 176/45
  6. So, 20/18 + 42/15 = 176/45
    In mixed form: 341/45

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