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Add 20/16 and 42/40

1st number: 1 4/16, 2nd number: 1 2/40

20/16 + 42/40 is 23/10.

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,
    20/16 = 20 × 5/16 × 5 = 100/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    42/40 = 42 × 2/40 × 2 = 84/80
  4. Add the two like fractions:
    100/80 + 84/80 = 100 + 84/80 = 184/80
  5. 184/80 simplified gives 23/10
  6. So, 20/16 + 42/40 = 23/10
    In mixed form: 23/10

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