Answers

Subtract 9/63 from 84/90

84/90 - 9/63 is 83/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   84/90 = 84 × 7/90 × 7 = 588/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   9/63 = 9 × 10/63 × 10 = 90/630
4. Subtract the two like fractions:
   588/630 - 90/630 = 588 - 90/630 = 498/630
5. After reducing the fraction, the answer is 83/105

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