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Add 27/70 and 40/80

27/70 + 40/80 is 31/35.

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,
    27/70 = 27 × 8/70 × 8 = 216/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    40/80 = 40 × 7/80 × 7 = 280/560
  4. Add the two like fractions:
    216/560 + 280/560 = 216 + 280/560 = 496/560
  5. 496/560 simplified gives 31/35
  6. So, 27/70 + 40/80 = 31/35

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