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Add 20/21 and 12/32

20/21 + 12/32 is 223/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 32 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 21 × 32 = 672,
    20/21 = 20 × 32/21 × 32 = 640/672
  3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
    12/32 = 12 × 21/32 × 21 = 252/672
  4. Add the two like fractions:
    640/672 + 252/672 = 640 + 252/672 = 892/672
  5. 892/672 simplified gives 223/168
  6. So, 20/21 + 12/32 = 223/168
    In mixed form: 155/168

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