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Add 7/70 and 21/98

7/70 + 21/98 is 11/35.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 70 × 7 = 490,
    7/70 = 7 × 7/70 × 7 = 49/490
  3. Likewise, for the 2nd fraction, since 98 × 5 = 490,
    21/98 = 21 × 5/98 × 5 = 105/490
  4. Add the two like fractions:
    49/490 + 105/490 = 49 + 105/490 = 154/490
  5. 154/490 simplified gives 11/35
  6. So, 7/70 + 21/98 = 11/35

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