Step: 1

The length of the track has to be repaired = the total length of the track that has to be repaired - the length of the track that was repaired.

Step: 2

= 15 11 - 2 11

[Substitute the values.]

Step: 3

= 15-2 11

[Write the difference over the common denominator.]

Step: 4

= 13 11

[Subtract the numerators.]

Step: 5

Correct Answer is : 13 11 mi

Step: 1

The fraction of miles that Andrew can run more than that of Francis = the distance that Andrew can run - the distance that Francis can run.

Step: 2

= 4 5 - 2 5

[Substitute the values.]

Step: 3

= 4-2 5

[Write the difference over the common denominator.]

Step: 4

= 2 5

[Subtract the numerators.]

Step: 5

Andrew runs 2 5 miles more than that of Francis.

Correct Answer is : 2 5

Step: 1

The difference between the number of apples they ate = 15 7 - 5 7

Step: 2

= 1 5 - 5 7

[Write the difference over the common denominator.]

Step: 3

= 10 7

[Subtract the numerators.]

Step: 4

So, Ed ate 10 7 of the apple more than Bill.

Correct Answer is : 10 7

Step: 1

The difference between the heights of the two candles = the height of the first candle - the height of the second candle.

Step: 2

= 6 7 - 3 7

[Substitute the values.]

Step: 3

= 6-3 7

[Write the difference over the common denominator.]

Step: 4

= 3 7

[Subtract the numerators.]

Step: 5

The difference between the heights of the two candles is 3 7 inch.

Correct Answer is : 3 7 inch

Step: 1

The difference between the distance traveled by Jeff and Nathan = distance traveled by Nathan - distance traveled by Jeff

Step: 2

= 14 9 - 10 9

[Substitute the values.]

Step: 3

= 14-10 9

[Write the difference over the common denominator.]

Step: 4

= 4 9

[Subtract the numerators.]

Step: 5

The difference between the distances traveled by Jeff and Nathan is 4 9 miles.

Correct Answer is : 4 9 miles

Step: 1

The difference between the distance traveled by the 2 balls = the distance traveled by the ball hit by Joe - the distance traveled by the ball hit by Edward

Step: 2

= 85 7 - 78 7

[Substitute the values.]

Step: 3

= 85-78 7

[Write the difference over the common denominator.]

Step: 4

= 7 7

[Subtract the numerators.]

Step: 5

= 1

[Divide both the numerator and the denominator by 7.]

Step: 6

The difference between the distances traveled by the two balls is 1 feet.

Correct Answer is : 1 feet

Step: 1

The difference between the weights of Titanic and Spark = the weight of Titanic - the weight of Spark.

Step: 2

= 16 3 - 13 3

[Subtract the values.]

Step: 3

= 16-13 3

[Write the difference over the common denominator.]

Step: 4

= 3 3

[Subtract the numerators.]

Step: 5

= 1

[Simplify.]

Step: 6

The difference between the weights of Titanic and Spark was 1 lb.

Correct Answer is : 1 lb

Step: 1

The difference between the weights of the meatballs Jimmy and Tony ate = the weight of the meatballs that Tony ate - the weight of the meatballs that Jimmy ate.

Step: 2

= 9 5 - 6 5

[Substitute the values.]

Step: 3

= 9-6 5

[Write the difference over the common denominator.]

Step: 4

= 3 5

[Subtract the numerators.]

Step: 5

The difference between the weights of the meatballs that Jimmy and Tony ate is 3 5 lb.

Correct Answer is : 3 5 lb

Step: 1

Weight of carton-B more than carton-A = weight of carton-B - weight of carton-A

Step: 2

= 10 27 - 2 27

[Substitute the values.]

Step: 3

= 10-2 27

[Write the difference over the common denominator.]

Step: 4

= 8 27

[Subtract the numerators.]

Step: 5

Carton-B weighs 8 27 lb more than carton-A.

Correct Answer is : 8 27 lb

Step: 1

The difference between the lengths of the two ropes = 13 7 - 8 7

Step: 2

= (13-8) 7

[Write the difference over the common denominator.]

Step: 3

= 5 7

Step: 4

So, the difference between the lengths is 5 7 inches.

Correct Answer is : 5 7 inches

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