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Add 5/4 and 15/40

1st number: 1 1/4, 2nd number: 15/40

5/4 + 15/40 is 13/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 4 × 10 = 40,
    5/4 = 5 × 10/4 × 10 = 50/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    15/40 = 15 × 1/40 × 1 = 15/40
  4. Add the two like fractions:
    50/40 + 15/40 = 50 + 15/40 = 65/40
  5. 65/40 simplified gives 13/8
  6. So, 5/4 + 15/40 = 13/8
    In mixed form: 15/8

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