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Add 21/10 and 98/20

1st number: 2 1/10, 2nd number: 4 18/20

21/10 + 98/20 is 7/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20
  2. For the 1st fraction, since 10 × 2 = 20,
    21/10 = 21 × 2/10 × 2 = 42/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    98/20 = 98 × 1/20 × 1 = 98/20
  4. Add the two fractions:
    42/20 + 98/20 = 42 + 98/20 = 140/20
  5. After reducing the fraction, the answer is 7/1

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