Answers

Subtract 90/80 from 45/9

1^st number: 5 0/9, 2^nd number: 1 10/80

45/9 - 90/80 is 31/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 9 × 80 = 720,
   45/9 = 45 × 80/9 × 80 = 3600/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   90/80 = 90 × 9/80 × 9 = 810/720
4. Subtract the two like fractions:
   3600/720 - 810/720 = 3600 - 810/720 = 2790/720
5. After reducing the fraction, the answer is 31/8
6. In mixed form: 37/8

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