Answers

Subtract 49/20 from 7/4

1^st number: 1 3/4, 2^nd number: 2 9/20

7/4 - 49/20 is -7/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 20 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 4 × 5 = 20,
   7/4 = 7 × 5/4 × 5 = 35/20
3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
   49/20 = 49 × 1/20 × 1 = 49/20
4. Subtract the two like fractions:
   35/20 - 49/20 = 35 - 49/20 = -14/20
5. After reducing the fraction, the answer is -7/10

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