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Add 10/42 and 4/70

10/42 + 4/70 is 31/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 70 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    10/42 = 10 × 5/42 × 5 = 50/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    4/70 = 4 × 3/70 × 3 = 12/210
  4. Add the two fractions:
    50/210 + 12/210 = 50 + 12/210 = 62/210
  5. After reducing the fraction, the answer is 31/105

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