Answers

Subtract 98/10 from 1/42

1^st number: 1/42, 2^nd number: 9 8/10

1/42 - 98/10 is -2053/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 10 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   1/42 = 1 × 5/42 × 5 = 5/210
3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
   98/10 = 98 × 21/10 × 21 = 2058/210
4. Subtract the two like fractions:
   5/210 - 2058/210 = 5 - 2058/210 = -2053/210

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