Answers

Subtract 35/45 from 28/80

28/80 - 35/45 is -77/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 45 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   28/80 = 28 × 9/80 × 9 = 252/720
3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
   35/45 = 35 × 16/45 × 16 = 560/720
4. Subtract the two like fractions:
   252/720 - 560/720 = 252 - 560/720 = -308/720
5. After reducing the fraction, the answer is -77/180

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