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757 LearnersLast updated on August 5, 2025


1 hour and 40 minutes in decimal form is written as 1.67.
To convert 1 hour and 40 minutes to a decimal, we will first convert the minutes to a fraction of an hour. Since there are 60 minutes in an hour, 40 minutes is 40/60 of an hour.
Step 1: Identify the whole hours and the minutes. Here, the whole part is 1 hour, and the minutes are 40.
Step 2: Convert the minutes to a fraction of an hour: 40 minutes is 40/60 = 2/3 of an hour.
Step 3: Convert the fraction to a decimal: 2/3 is approximately 0.67 when converted to a decimal.
Step 4: Add the decimal to the whole part: 1 (whole hour) + 0.67 (fractional hour) = 1.67.
Therefore, 1 hour and 40 minutes as a decimal is 1.67.
