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Add 56/80 and 21/36

56/80 + 21/36 is 77/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 36 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    56/80 = 56 × 9/80 × 9 = 504/720
  3. Likewise, for the 2nd fraction, since 36 × 20 = 720,
    21/36 = 21 × 20/36 × 20 = 420/720
  4. Add the two like fractions:
    504/720 + 420/720 = 504 + 420/720 = 924/720
  5. 924/720 simplified gives 77/60
  6. So, 56/80 + 21/36 = 77/60
    In mixed form: 117/60

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