Answers

Subtract 40/98 from 70/80

70/80 - 40/98 is 183/392.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 98 is 3920
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3920
2. For the 1st fraction, since 80 × 49 = 3920,
   70/80 = 70 × 49/80 × 49 = 3430/3920
3. Likewise, for the 2nd fraction, since 98 × 40 = 3920,
   40/98 = 40 × 40/98 × 40 = 1600/3920
4. Subtract the two like fractions:
   3430/3920 - 1600/3920 = 3430 - 1600/3920 = 1830/3920
5. After reducing the fraction, the answer is 183/392

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