Daisuke has [tex]$14 \frac{1}{3}$[/tex] yards of rope. He cuts off [tex]$11 \frac{5}{6}$[/tex] yards to tie a boat to a dock. How many yards of rope does he have left?



Answer :

Let's solve this problem step-by-step.

1. Representing the Quantities in Mixed Fractions:
Daisuke starts with [tex]\( 14 \frac{1}{3} \)[/tex] yards of rope, and he uses [tex]\( 11 \frac{5}{6} \)[/tex] yards.

2. Converting Mixed Fractions to Improper Fractions:
To perform subtraction, it is easier to work with improper fractions first.
- Convert [tex]\( 14 \frac{1}{3} \)[/tex] to an improper fraction:
[tex]\[ 14 \frac{1}{3} = 14 + \frac{1}{3} = \frac{42}{3} + \frac{1}{3} = \frac{43}{3} \][/tex]
- Convert [tex]\( 11 \frac{5}{6} \)[/tex] to an improper fraction:
[tex]\[ 11 \frac{5}{6} = 11 + \frac{5}{6} = \frac{66}{6} + \frac{5}{6} = \frac{71}{6} \][/tex]

3. Finding a Common Denominator:
To subtract these fractions, we need a common denominator. The least common multiple of 3 and 6 is 6.
- Convert [tex]\( \frac{43}{3} \)[/tex] to a fraction with a denominator of 6:
[tex]\[ \frac{43}{3} \times \frac{2}{2} = \frac{86}{6} \][/tex]

4. Subtracting the Fractions:
Now, we can subtract [tex]\( \frac{71}{6} \)[/tex] from [tex]\( \frac{86}{6} \)[/tex]:
[tex]\[ \frac{86}{6} - \frac{71}{6} = \frac{15}{6} \][/tex]

5. Simplifying the Fraction:
Simplify [tex]\( \frac{15}{6} \)[/tex]:
[tex]\[ \frac{15}{6} = 2 \frac{3}{6} = 2 \frac{1}{2} \][/tex]
This means Daisuke has [tex]\( 2 \frac{1}{2} \)[/tex] yards of rope left.

So, after cutting off the rope, Daisuke has approximately 2.81 yards of rope left.