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Add 28/16 and 9/40

1st number: 1 12/16, 2nd number: 9/40

28/16 + 9/40 is 79/40.

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,
    28/16 = 28 × 5/16 × 5 = 140/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    9/40 = 9 × 2/40 × 2 = 18/80
  4. Add the two like fractions:
    140/80 + 18/80 = 140 + 18/80 = 158/80
  5. 158/80 simplified gives 79/40
  6. So, 28/16 + 9/40 = 79/40
    In mixed form: 139/40

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