Answers

Subtract 24/5 from 90/20

1^st number: 4 10/20, 2^nd number: 4 4/5

90/20 - 24/5 is -3/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 5 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   90/20 = 90 × 1/20 × 1 = 90/20
3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
   24/5 = 24 × 4/5 × 4 = 96/20
4. Subtract the two like fractions:
   90/20 - 96/20 = 90 - 96/20 = -6/20
5. After reducing the fraction, the answer is -3/10

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