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.