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Add 21/70 and 12/98

21/70 + 12/98 is 207/490.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 98 is 490
  2. For the 1st fraction, since 70 × 7 = 490,
    21/70 = 21 × 7/70 × 7 = 147/490
  3. Likewise, for the 2nd fraction, since 98 × 5 = 490,
    12/98 = 12 × 5/98 × 5 = 60/490
  4. Add the two fractions:
    147/490 + 60/490 = 147 + 60/490 = 207/490
  5. So, 21/70 + 12/98 = 207/490

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