Answers

Subtract 50/63 from 27/90

27/90 - 50/63 is -311/630.

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,
   27/90 = 27 × 7/90 × 7 = 189/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   50/63 = 50 × 10/63 × 10 = 500/630
4. Subtract the two like fractions:
   189/630 - 500/630 = 189 - 500/630 = -311/630

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