Answers

Subtract 40/49 from 4/10

4/10 - 40/49 is -102/245.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 49 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 10 × 49 = 490,
   4/10 = 4 × 49/10 × 49 = 196/490
3. Likewise, for the 2nd fraction, since 49 × 10 = 490,
   40/49 = 40 × 10/49 × 10 = 400/490
4. Subtract the two like fractions:
   196/490 - 400/490 = 196 - 400/490 = -204/490
5. After reducing the fraction, the answer is -102/245

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