Answers

Subtract 21/10 from 24/18

1^st number: 1 6/18, 2^nd number: 2 1/10

24/18 - 21/10 is -23/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 10 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   24/18 = 24 × 5/18 × 5 = 120/90
3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
   21/10 = 21 × 9/10 × 9 = 189/90
4. Subtract the two like fractions:
   120/90 - 189/90 = 120 - 189/90 = -69/90
5. After reducing the fraction, the answer is -23/30

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