Answers

Subtract 63/80 from 90/10

1^st number: 9 0/10, 2^nd number: 63/80

90/10 - 63/80 is 657/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 10 × 8 = 80,
   90/10 = 90 × 8/10 × 8 = 720/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   63/80 = 63 × 1/80 × 1 = 63/80
4. Subtract the two like fractions:
   720/80 - 63/80 = 720 - 63/80 = 657/80
5. In mixed form: 817/80

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