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Add 81/70 and 5/4

1st number: 1 11/70, 2nd number: 1 1/4

81/70 + 5/4 is 337/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 4 is 140
  2. For the 1st fraction, since 70 × 2 = 140,
    81/70 = 81 × 2/70 × 2 = 162/140
  3. Likewise, for the 2nd fraction, since 4 × 35 = 140,
    5/4 = 5 × 35/4 × 35 = 175/140
  4. Add the two fractions:
    162/140 + 175/140 = 162 + 175/140 = 337/140
  5. So, 81/70 + 5/4 = 337/140
    In mixed form: 257/140

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