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Add 30/21 and 70/30

1st number: 1 9/21, 2nd number: 2 10/30

30/21 + 70/30 is 79/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    30/21 = 30 × 10/21 × 10 = 300/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    70/30 = 70 × 7/30 × 7 = 490/210
  4. Add the two fractions:
    300/210 + 490/210 = 300 + 490/210 = 790/210
  5. 790/210 simplified gives 79/21
  6. So, 30/21 + 70/30 = 79/21
    In mixed form: 316/21

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