Answers

Subtract 20/7 from 7/24

1^st number: 7/24, 2^nd number: 2 6/7

7/24 - 20/7 is -431/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 7 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 24 × 7 = 168,
   7/24 = 7 × 7/24 × 7 = 49/168
3. Likewise, for the 2nd fraction, since 7 × 24 = 168,
   20/7 = 20 × 24/7 × 24 = 480/168
4. Subtract the two like fractions:
   49/168 - 480/168 = 49 - 480/168 = -431/168

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