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Add 81/70 and 30/4

1st number: 1 11/70, 2nd number: 7 2/4

81/70 + 30/4 is 303/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 4 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    30/4 = 30 × 35/4 × 35 = 1050/140
  4. Add the two like fractions:
    162/140 + 1050/140 = 162 + 1050/140 = 1212/140
  5. 1212/140 simplified gives 303/35
  6. So, 81/70 + 30/4 = 303/35
    In mixed form: 823/35

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