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Add 54/16 and 21/40

1st number: 3 6/16, 2nd number: 21/40

54/16 + 21/40 is 39/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 40 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    54/16 = 54 × 5/16 × 5 = 270/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    21/40 = 21 × 2/40 × 2 = 42/80
  4. Add the two like fractions:
    270/80 + 42/80 = 270 + 42/80 = 312/80
  5. 312/80 simplified gives 39/10
  6. So, 54/16 + 21/40 = 39/10
    In mixed form: 39/10

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