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Add 15/72 and 72/80

15/72 + 72/80 is 133/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 72 × 10 = 720,
    15/72 = 15 × 10/72 × 10 = 150/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    72/80 = 72 × 9/80 × 9 = 648/720
  4. Add the two like fractions:
    150/720 + 648/720 = 150 + 648/720 = 798/720
  5. 798/720 simplified gives 133/120
  6. So, 15/72 + 72/80 = 133/120
    In mixed form: 113/120

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