Answers

Subtract 21/4 from 2/8

1^st number: 2/8, 2^nd number: 5 1/4

2/8 - 21/4 is -5/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 4 is 8
   
   Next, find the equivalent fraction of both fractional numbers with denominator 8
2. For the 1st fraction, since 8 × 1 = 8,
   2/8 = 2 × 1/8 × 1 = 2/8
3. Likewise, for the 2nd fraction, since 4 × 2 = 8,
   21/4 = 21 × 2/4 × 2 = 42/8
4. Subtract the two like fractions:
   2/8 - 42/8 = 2 - 42/8 = -40/8
5. After reducing the fraction, the answer is -5/1

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