Answers

Subtract 42/20 from 48/98

1^st number: 48/98, 2^nd number: 2 2/20

48/98 - 42/20 is -789/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 98 × 10 = 980,
   48/98 = 48 × 10/98 × 10 = 480/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   42/20 = 42 × 49/20 × 49 = 2058/980
4. Subtract the two like fractions:
   480/980 - 2058/980 = 480 - 2058/980 = -1578/980
5. After reducing the fraction, the answer is -789/490

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