Answers

Subtract 40/98 from 10/42

10/42 - 40/98 is -25/147.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 42 × 7 = 294,
   10/42 = 10 × 7/42 × 7 = 70/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   40/98 = 40 × 3/98 × 3 = 120/294
4. Subtract the two like fractions:
   70/294 - 120/294 = 70 - 120/294 = -50/294
5. After reducing the fraction, the answer is -25/147

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