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Add 42/70 and 12/30

42/70 + 12/30 is 1/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 70 × 3 = 210,
    42/70 = 42 × 3/70 × 3 = 126/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    12/30 = 12 × 7/30 × 7 = 84/210
  4. Add the two like fractions:
    126/210 + 84/210 = 126 + 84/210 = 210/210
  5. 210/210 simplified gives 1/1
  6. So, 42/70 + 12/30 = 1/1

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