Answers

Subtract 25/8 from 20/49

1^st number: 20/49, 2^nd number: 3 1/8

20/49 - 25/8 is -1065/392.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 8 is 392
   
   Next, find the equivalent fraction of both fractional numbers with denominator 392
2. For the 1st fraction, since 49 × 8 = 392,
   20/49 = 20 × 8/49 × 8 = 160/392
3. Likewise, for the 2nd fraction, since 8 × 49 = 392,
   25/8 = 25 × 49/8 × 49 = 1225/392
4. Subtract the two like fractions:
   160/392 - 1225/392 = 160 - 1225/392 = -1065/392

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