Answers

Subtract 21/7 from 98/42

1^st number: 2 14/42, 2^nd number: 3 0/7

98/42 - 21/7 is -2/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 7 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   98/42 = 98 × 1/42 × 1 = 98/42
3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
   21/7 = 21 × 6/7 × 6 = 126/42
4. Subtract the two like fractions:
   98/42 - 126/42 = 98 - 126/42 = -28/42
5. After reducing the fraction, the answer is -2/3

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