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Add 21/5 and 40/10

1st number: 4 1/5, 2nd number: 4 0/10

21/5 + 40/10 is 41/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 10 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 5 × 2 = 10,
    21/5 = 21 × 2/5 × 2 = 42/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    40/10 = 40 × 1/10 × 1 = 40/10
  4. Add the two like fractions:
    42/10 + 40/10 = 42 + 40/10 = 82/10
  5. 82/10 simplified gives 41/5
  6. So, 21/5 + 40/10 = 41/5
    In mixed form: 81/5

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