Answers

Subtract 49/90 from 2/63

2/63 - 49/90 is -323/630.

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,
   2/63 = 2 × 10/63 × 10 = 20/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   49/90 = 49 × 7/90 × 7 = 343/630
4. Subtract the two like fractions:
   20/630 - 343/630 = 20 - 343/630 = -323/630

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