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Add 90/10 and 10/21

1st number: 9 0/10, 2nd number: 10/21

90/10 + 10/21 is 199/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    90/10 = 90 × 21/10 × 21 = 1890/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    10/21 = 10 × 10/21 × 10 = 100/210
  4. Add the two fractions:
    1890/210 + 100/210 = 1890 + 100/210 = 1990/210
  5. After reducing the fraction, the answer is 199/21
  6. In mixed form: 910/21

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