Answers

Subtract 63/9 from 20/4

1^st number: 5 0/4, 2^nd number: 7 0/9

20/4 - 63/9 is -2/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 9 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 4 × 9 = 36,
   20/4 = 20 × 9/4 × 9 = 180/36
3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
   63/9 = 63 × 4/9 × 4 = 252/36
4. Subtract the two like fractions:
   180/36 - 252/36 = 180 - 252/36 = -72/36
5. After reducing the fraction, the answer is -2/1

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