Answers

Subtract 21/8 from 35/80

1^st number: 35/80, 2^nd number: 2 5/8

35/80 - 21/8 is -35/16.

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,
   35/80 = 35 × 1/80 × 1 = 35/80
3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
   21/8 = 21 × 10/8 × 10 = 210/80
4. Subtract the two like fractions:
   35/80 - 210/80 = 35 - 210/80 = -175/80
5. After reducing the fraction, the answer is -35/16

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