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Add 80/98 and 45/70

80/98 + 45/70 is 143/98.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 70 is 490

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 98 × 5 = 490,
    80/98 = 80 × 5/98 × 5 = 400/490
  3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
    45/70 = 45 × 7/70 × 7 = 315/490
  4. Add the two like fractions:
    400/490 + 315/490 = 400 + 315/490 = 715/490
  5. 715/490 simplified gives 143/98
  6. So, 80/98 + 45/70 = 143/98
    In mixed form: 145/98

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