Addition
Add compound units
Add feet and inches, pounds and ounces, hours and minutes, minutes and seconds, or yards and quarter-feet using the correct unit conversion.
Preview and downloadAddition practice
Add feet and fractional inches
Combine measurements in feet and inches, including fractional inches from selected denominator families through sixty-fourths.
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Add the fractional inches, then whole inches. Exchange each full 12 inches for a foot and add it to the feet total.
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Customize this worksheetLearning objective
What this activity builds
Add fractional inches exactly, simplify when appropriate, and exchange twelve inches for one foot.
Worked example
What is 3 ft 7 3/4 in + 2 ft 5 1/2 in?
6 ft 1 1/4 in
The inches total 13 1/4, which is 1 foot 1 1/4 inches. Add that foot to the original 5 feet.
Teaching notes
Make the practice count
- Convert fractional inches to a shared denominator before adding.
- Keep exact fractions instead of using rounded decimal approximations.
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A useful next step
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Addition
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Print adding decimals worksheets with a separate answer key. Choose two, three or four addends, one to three decimal places and aligned vertical working.
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