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Add 42/70 and 90/56

1st number: 42/70, 2nd number: 1 34/56

42/70 + 90/56 is 309/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 56 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    42/70 = 42 × 4/70 × 4 = 168/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    90/56 = 90 × 5/56 × 5 = 450/280
  4. Add the two fractions:
    168/280 + 450/280 = 168 + 450/280 = 618/280
  5. 618/280 simplified gives 309/140
  6. So, 42/70 + 90/56 = 309/140
    In mixed form: 229/140

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