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Add 70/15 and 90/40

1st number: 4 10/15, 2nd number: 2 10/40

70/15 + 90/40 is 83/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 40 is 120
  2. For the 1st fraction, since 15 × 8 = 120,
    70/15 = 70 × 8/15 × 8 = 560/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    90/40 = 90 × 3/40 × 3 = 270/120
  4. Add the two fractions:
    560/120 + 270/120 = 560 + 270/120 = 830/120
  5. After reducing the fraction, the answer is 83/12
  6. In mixed form: 611/12

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