Answers

Subtract 80/9 from 98/20

1^st number: 4 18/20, 2^nd number: 8 8/9

98/20 - 80/9 is -359/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 9 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   98/20 = 98 × 9/20 × 9 = 882/180
3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
   80/9 = 80 × 20/9 × 20 = 1600/180
4. Subtract the two like fractions:
   882/180 - 1600/180 = 882 - 1600/180 = -718/180
5. After reducing the fraction, the answer is -359/90

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