Answers

Subtract 70/72 from 40/98

40/98 - 70/72 is -995/1764.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 72 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 98 × 36 = 3528,
   40/98 = 40 × 36/98 × 36 = 1440/3528
3. Likewise, for the 2nd fraction, since 72 × 49 = 3528,
   70/72 = 70 × 49/72 × 49 = 3430/3528
4. Subtract the two like fractions:
   1440/3528 - 3430/3528 = 1440 - 3430/3528 = -1990/3528
5. After reducing the fraction, the answer is -995/1764

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