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Add 5/8 and 42/70

5/8 + 42/70 is 49/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 8 × 35 = 280,
    5/8 = 5 × 35/8 × 35 = 175/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    42/70 = 42 × 4/70 × 4 = 168/280
  4. Add the two like fractions:
    175/280 + 168/280 = 175 + 168/280 = 343/280
  5. 343/280 simplified gives 49/40
  6. So, 5/8 + 42/70 = 49/40
    In mixed form: 19/40

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