Answers

Subtract 48/80 from 20/36

20/36 - 48/80 is -2/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 36 × 20 = 720,
   20/36 = 20 × 20/36 × 20 = 400/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   48/80 = 48 × 9/80 × 9 = 432/720
4. Subtract the two like fractions:
   400/720 - 432/720 = 400 - 432/720 = -32/720
5. After reducing the fraction, the answer is -2/45

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