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Add 42/70 and 18/12

1st number: 42/70, 2nd number: 1 6/12

42/70 + 18/12 is 21/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 12 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    42/70 = 42 × 6/70 × 6 = 252/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    18/12 = 18 × 35/12 × 35 = 630/420
  4. Add the two fractions:
    252/420 + 630/420 = 252 + 630/420 = 882/420
  5. 882/420 simplified gives 21/10
  6. So, 42/70 + 18/12 = 21/10
    In mixed form: 21/10

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