What Is 80% of 40?

80% of 40 is 32, the same as 4/5 of 40.

Result

Answer

32

80% of 40 is 32.

  • 40 + 80%: 72
  • 40 − 80%: 8
3280% of 40

Step-by-step solution

The problem

{80}\% \text{ of } {40}
  1. Change 80% to a decimal. Divide by 100.

    80\% = 80 \div 100 = 0.8
    = \textcolor{#0b5c56}{0.8} \times 40
  2. Multiply. Leave out the decimal points and multiply, then put the point back. Count the decimal places: 0.8 has 1, so the answer has 1.

    \begin{aligned} 8 \times 40 &= 320 \\[10pt] 320 \div 10 &= 32 \end{aligned}
    = \textcolor{#0b5c56}{32}

All the working together

\begin{aligned} &{80}\% \text{ of } {40} \\[8pt] &= 0.8 \times 40 && \textcolor{#5b6660}{\textsf{percent → decimal}} \\[8pt] &= \textcolor{#0b5c56}{32} && \textcolor{#5b6660}{\textsf{multiply}}\end{aligned}
What is % of ?

80% of 40 at a glance

80% of 4032
80% as a fraction4/5
40 + 80%72
40 − 80%8

Frequently asked questions

What is 80% of 40?

80% of 40 is 32: change 80% to a decimal (0.8) and multiply by 40.

What is 40 plus 80%?

40 increased by 80% is 72 (40 + 32).

What is 40 minus 80%?

40 decreased by 80% is 8 (40 − 32).

Any other percentage question – a part as a percent, percent change, percent difference: use the Percentage Calculator.