Answers

Subtract 49/20 from 21/48

1^st number: 21/48, 2^nd number: 2 9/20

21/48 - 49/20 is -161/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 20 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 48 × 5 = 240,
   21/48 = 21 × 5/48 × 5 = 105/240
3. Likewise, for the 2nd fraction, since 20 × 12 = 240,
   49/20 = 49 × 12/20 × 12 = 588/240
4. Subtract the two like fractions:
   105/240 - 588/240 = 105 - 588/240 = -483/240
5. After reducing the fraction, the answer is -161/80

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