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Add 42/70 and 30/8

1st number: 42/70, 2nd number: 3 6/8

42/70 + 30/8 is 87/20.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 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 8 × 35 = 280,
    30/8 = 30 × 35/8 × 35 = 1050/280
  4. Add the two like fractions:
    168/280 + 1050/280 = 168 + 1050/280 = 1218/280
  5. 1218/280 simplified gives 87/20
  6. So, 42/70 + 30/8 = 87/20
    In mixed form: 47/20

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