Answers

Subtract 56/49 from 7/20

1^st number: 7/20, 2^nd number: 1 7/49

7/20 - 56/49 is -111/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 49 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   7/20 = 7 × 49/20 × 49 = 343/980
3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
   56/49 = 56 × 20/49 × 20 = 1120/980
4. Subtract the two like fractions:
   343/980 - 1120/980 = 343 - 1120/980 = -777/980
5. After reducing the fraction, the answer is -111/140

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