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Add 45/80 and 20/98

45/80 + 20/98 is 601/784.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 98 is 3920

    Next, find the equivalent fraction of both fractional numbers with denominator 3920
  2. For the 1st fraction, since 80 × 49 = 3920,
    45/80 = 45 × 49/80 × 49 = 2205/3920
  3. Likewise, for the 2nd fraction, since 98 × 40 = 3920,
    20/98 = 20 × 40/98 × 40 = 800/3920
  4. Add the two like fractions:
    2205/3920 + 800/3920 = 2205 + 800/3920 = 3005/3920
  5. 3005/3920 simplified gives 601/784
  6. So, 45/80 + 20/98 = 601/784

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