Answers

Subtract 40/49 from 70/80

70/80 - 40/49 is 23/392.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 49 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 49 × 80 = 3920,
   40/49 = 40 × 80/49 × 80 = 3200/3920
4. Subtract the two like fractions:
   3430/3920 - 3200/3920 = 3430 - 3200/3920 = 230/3920
5. After reducing the fraction, the answer is 23/392

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