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Add 70/21 and 15/49

1st number: 3 7/21, 2nd number: 15/49

70/21 + 15/49 is 535/147.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 49 is 147
  2. For the 1st fraction, since 21 × 7 = 147,
    70/21 = 70 × 7/21 × 7 = 490/147
  3. Likewise, for the 2nd fraction, since 49 × 3 = 147,
    15/49 = 15 × 3/49 × 3 = 45/147
  4. Add the two fractions:
    490/147 + 45/147 = 490 + 45/147 = 535/147
  5. In mixed form: 394/147

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