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Zorluk: OrtaFraction Multiplication and Division in Context

A military supply depot has a stockpile of 262326 \frac{2}{3} gallons of synthetic transmission fluid. If each transport vehicle requires exactly 1131 \frac{1}{3} gallons of this fluid for a complete routine service, how many vehicles can be fully serviced using the entire stockpile?

  1. 20Cevap
  2. B
    28
  3. C
    355935 \frac{5}{9}
  4. D
    251325 \frac{1}{3}

Cevap

20
To determine how many vehicles can be serviced, the total amount of fluid (262326 \frac{2}{3} gallons) must be divided by the amount required per vehicle (1131 \frac{1}{3} gallons). First, convert both amounts to improper fractions: 803÷43\frac{80}{3} \div \frac{4}{3}. Next, multiply by the reciprocal of the second fraction: 803×34\frac{80}{3} \times \frac{3}{4}. The 3s in the numerator and denominator cancel out, leaving 80÷480 \div 4, which equals exactly 20.

Adım Adım Çözüm

1
Convert both mixed numbers to improper fractions.
2623=80326 \frac{2}{3} = \frac{80}{3} and 113=431 \frac{1}{3} = \frac{4}{3}.
Mixed numbers must be written as improper fractions before they can be multiplied or divided.
2
Set up the division equation.
803÷43\frac{80}{3} \div \frac{4}{3}
To find how many times the vehicle requirement fits into the total stockpile, divide the total fluid by the fluid needed per vehicle.
3
Multiply by the reciprocal of the divisor to solve.
803×34=24012=20\frac{80}{3} \times \frac{3}{4} = \frac{240}{12} = 20.
Dividing by a fraction is mathematically identical to multiplying by its reciprocal. The 3s cross-cancel, leaving 80 divided by 4.

Anahtar Kavram

Dividing mixed numbers by converting them to improper fractions and multiplying by the reciprocal.
Tahmini Süre:1m 30s
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