Answers

Subtract 7/20 from 40/63

40/63 - 7/20 is 359/1260.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 20 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   40/63 = 40 × 20/63 × 20 = 800/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   7/20 = 7 × 63/20 × 63 = 441/1260
4. Subtract the two like fractions:
   800/1260 - 441/1260 = 800 - 441/1260 = 359/1260

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