Answers

Subtract 21/48 from 54/15

1^st number: 3 9/15, 2^nd number: 21/48

54/15 - 21/48 is 253/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 48 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 15 × 16 = 240,
   54/15 = 54 × 16/15 × 16 = 864/240
3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
   21/48 = 21 × 5/48 × 5 = 105/240
4. Subtract the two like fractions:
   864/240 - 105/240 = 864 - 105/240 = 759/240
5. After reducing the fraction, the answer is 253/80
6. In mixed form: 313/80

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