Answers

Subtract 8/63 from 27/70

27/70 - 8/63 is 163/630.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   27/70 = 27 × 9/70 × 9 = 243/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   8/63 = 8 × 10/63 × 10 = 80/630
4. Subtract the two like fractions:
   243/630 - 80/630 = 243 - 80/630 = 163/630

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