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Add 20/70 and 90/20

1st number: 20/70, 2nd number: 4 10/20

20/70 + 90/20 is 67/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140
  2. For the 1st fraction, since 70 × 2 = 140,
    20/70 = 20 × 2/70 × 2 = 40/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    90/20 = 90 × 7/20 × 7 = 630/140
  4. Add the two fractions:
    40/140 + 630/140 = 40 + 630/140 = 670/140
  5. After reducing the fraction, the answer is 67/14
  6. In mixed form: 411/14

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