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Add 42/56 and 72/80

42/56 + 72/80 is 33/20.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 56 × 10 = 560,
    42/56 = 42 × 10/56 × 10 = 420/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    72/80 = 72 × 7/80 × 7 = 504/560
  4. Add the two like fractions:
    420/560 + 504/560 = 420 + 504/560 = 924/560
  5. 924/560 simplified gives 33/20
  6. So, 42/56 + 72/80 = 33/20
    In mixed form: 113/20

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