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Add 40/12 and 15/70

1st number: 3 4/12, 2nd number: 15/70

40/12 + 15/70 is 149/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 12 × 35 = 420,
    40/12 = 40 × 35/12 × 35 = 1400/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    15/70 = 15 × 6/70 × 6 = 90/420
  4. Add the two like fractions:
    1400/420 + 90/420 = 1400 + 90/420 = 1490/420
  5. 1490/420 simplified gives 149/42
  6. So, 40/12 + 15/70 = 149/42
    In mixed form: 323/42

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