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Add 20/42 and 32/45

20/42 + 32/45 is 374/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    20/42 = 20 × 15/42 × 15 = 300/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    32/45 = 32 × 14/45 × 14 = 448/630
  4. Add the two like fractions:
    300/630 + 448/630 = 300 + 448/630 = 748/630
  5. 748/630 simplified gives 374/315
  6. So, 20/42 + 32/45 = 374/315
    In mixed form: 159/315

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