Answers

Subtract 21/8 from 10/80

1^st number: 10/80, 2^nd number: 2 5/8

10/80 - 21/8 is -5/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 8 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   10/80 = 10 × 1/80 × 1 = 10/80
3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
   21/8 = 21 × 10/8 × 10 = 210/80
4. Subtract the two like fractions:
   10/80 - 210/80 = 10 - 210/80 = -200/80
5. After reducing the fraction, the answer is -5/2

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