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Add 84/70 and 90/56

1st number: 1 14/70, 2nd number: 1 34/56

84/70 + 90/56 is 393/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 56 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 70 × 4 = 280,
    84/70 = 84 × 4/70 × 4 = 336/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    90/56 = 90 × 5/56 × 5 = 450/280
  4. Add the two like fractions:
    336/280 + 450/280 = 336 + 450/280 = 786/280
  5. 786/280 simplified gives 393/140
  6. So, 84/70 + 90/56 = 393/140
    In mixed form: 2113/140

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