Evaluate the expression. 1/2 * 1/5 + 3/5 Write your answer as a fraction or as a whole or mixed number. ______

Determine total amount: First, we need to determine the total amount of electrical tape the electrician needs and the amount of tape on each roll. The electrician needs 8,000 centimeters of electrical tape, and each roll contains 2,000 centimeters of tape. To find out how many rolls are needed, we divide the total amount of tape needed by the amount of tape on each roll. Calculation: 8,000 cm ÷ 2,000 cm = 4 rolls

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Math Problems

Grade 7

Evaluate numerical expressions involving fractions

Full solution

Q. Evaluate the expression.

\newline

\frac{1}{2} \times \frac{1}{5} + \frac{3}{5}

\newline

Write your answer as a fraction or as a whole or mixed number.

\newline

______

Determine total amount: First, we need to determine the total amount of electrical tape the electrician needs and the amount of tape on each roll. The electrician needs $8,000$ centimeters of electrical tape, and each roll contains $2,000$ centimeters of tape. To find out how many rolls are needed, we divide the total amount of tape needed by the amount of tape on each roll. $\newline$ Calculation: $8,000 \, \text{cm} \div 2,000 \, \text{cm} = 4$ rolls