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A piece of steel bar 29 7/8 inches long was cut from a steel bar of 6 feet. How long was the remaining steel bar?

Sagot :

Convert 6 feet to inches ⇒ 6 feet x 12 inches = 72 inches
                                                     1 foot

Let the remaining steel bar be x.

Equation:
x = 72 - 29 ⁷/₈    ⇒  Change mixed fraction to improper ⇒ 239/8

LCD: 8

x = 576/8 - 239/8

x = 337/8

x = 42 ¹/₈

The remaining steel bar is 42 ¹/₈ inches long or roughly 3 ¹/₂ feet.