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Add 5/70 and 90/12

1st number: 5/70, 2nd number: 7 6/12

5/70 + 90/12 is 53/7.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 70 × 6 = 420,
    5/70 = 5 × 6/70 × 6 = 30/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    90/12 = 90 × 35/12 × 35 = 3150/420
  4. Add the two like fractions:
    30/420 + 3150/420 = 30 + 3150/420 = 3180/420
  5. 3180/420 simplified gives 53/7
  6. So, 5/70 + 90/12 = 53/7
    In mixed form: 74/7

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