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Add 20/80 and 25/70

20/80 + 25/70 is 17/28.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    20/80 = 20 × 7/80 × 7 = 140/560
  3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
    25/70 = 25 × 8/70 × 8 = 200/560
  4. Add the two like fractions:
    140/560 + 200/560 = 140 + 200/560 = 340/560
  5. 340/560 simplified gives 17/28
  6. So, 20/80 + 25/70 = 17/28

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