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Add 2/70 and 4/90

2/70 + 4/90 is 23/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 90 is 630
  2. For the 1st fraction, since 70 × 9 = 630,
    2/70 = 2 × 9/70 × 9 = 18/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    4/90 = 4 × 7/90 × 7 = 28/630
  4. Add the two fractions:
    18/630 + 28/630 = 18 + 28/630 = 46/630
  5. After reducing the fraction, the answer is 23/315

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