Answers

Subtract 45/80 from 10/40

10/40 - 45/80 is -5/16.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   10/40 = 10 × 2/40 × 2 = 20/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   45/80 = 45 × 1/80 × 1 = 45/80
4. Subtract the two like fractions:
   20/80 - 45/80 = 20 - 45/80 = -25/80
5. After reducing the fraction, the answer is -5/16

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