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Add 12/70 and 12/80

12/70 + 12/80 is 9/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 70 × 8 = 560,
    12/70 = 12 × 8/70 × 8 = 96/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    12/80 = 12 × 7/80 × 7 = 84/560
  4. Add the two like fractions:
    96/560 + 84/560 = 96 + 84/560 = 180/560
  5. 180/560 simplified gives 9/28
  6. So, 12/70 + 12/80 = 9/28

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