Answers

Subtract 40/49 from 30/63

30/63 - 40/49 is -50/147.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 49 is 441
   
   Next, find the equivalent fraction of both fractional numbers with denominator 441
2. For the 1st fraction, since 63 × 7 = 441,
   30/63 = 30 × 7/63 × 7 = 210/441
3. Likewise, for the 2nd fraction, since 49 × 9 = 441,
   40/49 = 40 × 9/49 × 9 = 360/441
4. Subtract the two like fractions:
   210/441 - 360/441 = 210 - 360/441 = -150/441
5. After reducing the fraction, the answer is -50/147

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