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Add 20/32 and 70/72

20/32 + 70/72 is 115/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 32 and 72 is 288

    Next, find the equivalent fraction of both fractional numbers with denominator 288
  2. For the 1st fraction, since 32 × 9 = 288,
    20/32 = 20 × 9/32 × 9 = 180/288
  3. Likewise, for the 2nd fraction, since 72 × 4 = 288,
    70/72 = 70 × 4/72 × 4 = 280/288
  4. Add the two like fractions:
    180/288 + 280/288 = 180 + 280/288 = 460/288
  5. 460/288 simplified gives 115/72
  6. So, 20/32 + 70/72 = 115/72
    In mixed form: 143/72

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