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Add 21/72 and 80/60

1st number: 21/72, 2nd number: 1 20/60

21/72 + 80/60 is 13/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 60 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    21/72 = 21 × 5/72 × 5 = 105/360
  3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
    80/60 = 80 × 6/60 × 6 = 480/360
  4. Add the two like fractions:
    105/360 + 480/360 = 105 + 480/360 = 585/360
  5. 585/360 simplified gives 13/8
  6. So, 21/72 + 80/60 = 13/8
    In mixed form: 15/8

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