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Add 21/16 and 60/20

1st number: 1 5/16, 2nd number: 3 0/20

21/16 + 60/20 is 69/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 20 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    21/16 = 21 × 5/16 × 5 = 105/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    60/20 = 60 × 4/20 × 4 = 240/80
  4. Add the two like fractions:
    105/80 + 240/80 = 105 + 240/80 = 345/80
  5. 345/80 simplified gives 69/16
  6. So, 21/16 + 60/20 = 69/16
    In mixed form: 45/16

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