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Add 5/15 and 70/40

1st number: 5/15, 2nd number: 1 30/40

5/15 + 70/40 is 25/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    5/15 = 5 × 8/15 × 8 = 40/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    70/40 = 70 × 3/40 × 3 = 210/120
  4. Add the two like fractions:
    40/120 + 210/120 = 40 + 210/120 = 250/120
  5. 250/120 simplified gives 25/12
  6. So, 5/15 + 70/40 = 25/12
    In mixed form: 21/12

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