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Add 72/80 and 49/56

72/80 + 49/56 is 71/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 56 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    72/80 = 72 × 7/80 × 7 = 504/560
  3. Likewise, for the 2nd fraction, since 56 × 10 = 560,
    49/56 = 49 × 10/56 × 10 = 490/560
  4. Add the two like fractions:
    504/560 + 490/560 = 504 + 490/560 = 994/560
  5. 994/560 simplified gives 71/40
  6. So, 72/80 + 49/56 = 71/40
    In mixed form: 131/40

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