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Add 21/5 and 9/40

1st number: 4 1/5, 2nd number: 9/40

21/5 + 9/40 is 177/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 5 × 8 = 40,
    21/5 = 21 × 8/5 × 8 = 168/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    9/40 = 9 × 1/40 × 1 = 9/40
  4. Add the two like fractions:
    168/40 + 9/40 = 168 + 9/40 = 177/40
  5. So, 21/5 + 9/40 = 177/40
    In mixed form: 417/40

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