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Add 15/8 and 10/40

1st number: 1 7/8, 2nd number: 10/40

15/8 + 10/40 is 17/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    15/8 = 15 × 5/8 × 5 = 75/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    10/40 = 10 × 1/40 × 1 = 10/40
  4. Add the two like fractions:
    75/40 + 10/40 = 75 + 10/40 = 85/40
  5. 85/40 simplified gives 17/8
  6. So, 15/8 + 10/40 = 17/8
    In mixed form: 21/8

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