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Add 6/70 and 40/90

6/70 + 40/90 is 167/315.

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,
    6/70 = 6 × 9/70 × 9 = 54/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    40/90 = 40 × 7/90 × 7 = 280/630
  4. Add the two fractions:
    54/630 + 280/630 = 54 + 280/630 = 334/630
  5. 334/630 simplified gives 167/315
  6. So, 6/70 + 40/90 = 167/315

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