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Add 30/18 and 21/70

1st number: 1 12/18, 2nd number: 21/70

30/18 + 21/70 is 59/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 70 is 630
  2. For the 1st fraction, since 18 × 35 = 630,
    30/18 = 30 × 35/18 × 35 = 1050/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    21/70 = 21 × 9/70 × 9 = 189/630
  4. Add the two fractions:
    1050/630 + 189/630 = 1050 + 189/630 = 1239/630
  5. After reducing the fraction, the answer is 59/30
  6. In mixed form: 129/30

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