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Add 90/70 and 70/28

1st number: 1 20/70, 2nd number: 2 14/28

90/70 + 70/28 is 53/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 28 is 140
  2. For the 1st fraction, since 70 × 2 = 140,
    90/70 = 90 × 2/70 × 2 = 180/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    70/28 = 70 × 5/28 × 5 = 350/140
  4. Add the two fractions:
    180/140 + 350/140 = 180 + 350/140 = 530/140
  5. After reducing the fraction, the answer is 53/14
  6. In mixed form: 311/14

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