Conversion Between Metric And Us Customary Units Worksheet Page 4
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Capacity
■ Metric units: litre (L) and millilitre (mL)
■ US Customary units: gallon (gal), quart (qt), pint (pt), cups (c), and fluid ounce (fl oz)
Conversion Table
US Customary Units
Metric Units
1 gal
3.785 L
1 qt
0.946 L
1 pt
473.2 mL
1 c
236.6 mL
1 fl oz
29.57 mL
Example 7.3-e
Converting Metric Units of Capacity to US Customary Units
Convert the following measurements:
(i)
60 L to gallons
(ii)
425 mL to fluid ounces
Solution
(i)
60 L to gallons:
1 gal
c
m
Use
as the conversion factor to cross-cancel the unit ‘L’ .
3.785 L
1 gal
c
m
60 L = 60 L ×
3.785 L
1
= 60 × 3.785
gal
= 15.852047… gal
= 15.85 gal
Therefore, 60 L is equal to 15.85 gal.
(ii)
425 mL to fluid ounces:
1 fl oz
Use
m as the conversion factor to cross-cancel the unit ‘mL’ .
c
29.57 mL
1 fl oz
c
m
425 mL = 425 mL ×
29.57 mL
1
= 425 × 29.57
fl oz
= 14.372675… fl oz
= 14.37 fl oz
Therefore, 425 mL is equal to14.37 fl oz.
Example 7.3-f
Converting US Customary Units of Capacity to Metric Units
Convert the following measurements:
(i)
2.5 gal to litres
(ii)
30 fl oz to litres
Chapter 7 | Units of Measurement
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