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Add 35/21 and 21/90

1st number: 1 14/21, 2nd number: 21/90

35/21 + 21/90 is 19/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 90 is 630
  2. For the 1st fraction, since 21 × 30 = 630,
    35/21 = 35 × 30/21 × 30 = 1050/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    21/90 = 21 × 7/90 × 7 = 147/630
  4. Add the two fractions:
    1050/630 + 147/630 = 1050 + 147/630 = 1197/630
  5. After reducing the fraction, the answer is 19/10
  6. In mixed form: 19/10

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