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Add 72/80 and 25/8

1st number: 72/80, 2nd number: 3 1/8

72/80 + 25/8 is 161/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 8 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    72/80 = 72 × 1/80 × 1 = 72/80
  3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
    25/8 = 25 × 10/8 × 10 = 250/80
  4. Add the two like fractions:
    72/80 + 250/80 = 72 + 250/80 = 322/80
  5. 322/80 simplified gives 161/40
  6. So, 72/80 + 25/8 = 161/40
    In mixed form: 41/40

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