Answers

Subtract 12/42 from 98/20

1^st number: 4 18/20, 2^nd number: 12/42

98/20 - 12/42 is 323/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 42 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   98/20 = 98 × 21/20 × 21 = 2058/420
3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
   12/42 = 12 × 10/42 × 10 = 120/420
4. Subtract the two like fractions:
   2058/420 - 120/420 = 2058 - 120/420 = 1938/420
5. After reducing the fraction, the answer is 323/70
6. In mixed form: 443/70

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