Answers

Subtract 75/20 from 20/49

1^st number: 20/49, 2^nd number: 3 15/20

20/49 - 75/20 is -655/196.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 49 × 20 = 980,
   20/49 = 20 × 20/49 × 20 = 400/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   75/20 = 75 × 49/20 × 49 = 3675/980
4. Subtract the two like fractions:
   400/980 - 3675/980 = 400 - 3675/980 = -3275/980
5. After reducing the fraction, the answer is -655/196

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