Answers

Subtract 90/21 from 1/24

1^st number: 1/24, 2^nd number: 4 6/21

1/24 - 90/21 is -713/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 21 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 24 × 7 = 168,
   1/24 = 1 × 7/24 × 7 = 7/168
3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
   90/21 = 90 × 8/21 × 8 = 720/168
4. Subtract the two like fractions:
   7/168 - 720/168 = 7 - 720/168 = -713/168

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