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Add 3/49 and 21/70

3/49 + 21/70 is 177/490.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 70 is 490
  2. For the 1st fraction, since 49 × 10 = 490,
    3/49 = 3 × 10/49 × 10 = 30/490
  3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
    21/70 = 21 × 7/70 × 7 = 147/490
  4. Add the two fractions:
    30/490 + 147/490 = 30 + 147/490 = 177/490
  5. So, 3/49 + 21/70 = 177/490

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