Answers

Subtract 56/90 from 6/63

6/63 - 56/90 is -166/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   6/63 = 6 × 10/63 × 10 = 60/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   56/90 = 56 × 7/90 × 7 = 392/630
4. Subtract the two like fractions:
   60/630 - 392/630 = 60 - 392/630 = -332/630
5. After reducing the fraction, the answer is -166/315

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