Examples with solutions for Comparing Decimal Fractions: Worded problems

Exercise #1

A father gives his son Nicolas \( 4.7 and his son Daniel \( 8.1 .

How much does he give his sons in total?

Video Solution

Step-by-Step Solution

To know how many shekels Dad gave to Daniel and Nathaniel, we'll add up the amounts of shekels in the vertical format as follows:

4.7+8.1 4.7\\+8.1

We'll add from left to right and get:

12.8 12.8

Answer

\( 12.8

Exercise #2

A father gives his son Nicolas 4.5 4.5 dollars and his son Daniel 8.2 8.2 dollars.

How much does he give to Nicolas and Daniel in total?

Video Solution

Step-by-Step Solution

To know how many shekels Dad gave to Netanel and Daniel, we'll add up the amounts of shekels in the vertical format as follows:

4.5+8.2 4.5\\+8.2

We'll add from right to left and get:

12.7 12.7

Answer

\( 12.7

Exercise #3

A grandfather gives one grandson

£42.5 \pounds42.5 and another grandson £32.4 \pounds32.4 .

How much does the grandfather give to his two grandsons in total?

Video Solution

Step-by-Step Solution

To know how many shekels grandfather gave to the two grandchildren, we will add the shekels he gave to each one:

42.5+32.4 42.5\\+32.4

We will add from right to left and get:

74.9 74.9

Answer

£74.9 \pounds74.9

Exercise #4

Andy goes on a three-day trip.

On day one, he travels 1.2 1.2 km.

On day two, he travels 2.1 2.1 km.

On day three, he travels 1.7 1.7 km.


How many kilometers does Andy travel in total over the three days?

Video Solution

Step-by-Step Solution

To know how many km Ido walked in total, we'll add up the distances he walked each day in the following manner:

1.2+2.1+1.7 1.2\\+2.1\\+1.7

We'll add from left to right accordingly:

2+1+7=10 2+1+7=10

We'll write 0 and carry over the tens to the whole numbers before the decimal point and get:

1+1+2+1=5 1+1+2+1=5

In total, Ido walked 5.0 km, which means 5 km

Answer

5 5

Exercise #5

Chris buys apples costing £10.30 \pounds10.30 and grapes that cost £17.10 \pounds17.10 .

How much does Chris pay in total?

Video Solution

Step-by-Step Solution

To work out how much Chris pays in total, we need to add the cost of the apples to the cost of the grapes as follows:

10.3+17.1 10.3\\+17.1

This gives us the answer:

27.4 27.4

Answer

£27.40 \pounds27.40

Exercise #6

Gerard goes on a two-day hike.

On the first day, he walks 19.2 19.2 km and on the second day he walks 22.6 22.6 km.

How many kilometers does Gerard walk in total?

Video Solution

Step-by-Step Solution

To calculate how many km Ilan walked in two days, we'll add up the number of kilometers he walked each day vertically as follows:

19.2+22.6 19.2\\+22.6

We'll add from left to right and get:

41.8 41.8

Answer

41.8 41.8

Exercise #7

If Ivan has 4 4 coins; each with a value of 10 10 cents and 7 7 coins; each with a value of 5 5 cents.

How much money does Ivan have in total?

Step-by-Step Solution

First, let's calculate how many shekels are 4 ten-agorot coins:

4×10=40 4\times10=40

Since one shekel has 100 agorot, 40 agorot equals 0.4 shekels

Now let's calculate how many are 7 five-agorot coins:

7×5=35 7\times5=35

Since one shekel has 100 agorot, 35 agorot equals 0.35 shekels

Finally, let's add the amounts together:

0.4+0.35=0.75 0.4+0.35=0.75

Adi has a total of 0.75 shekels

Answer

0.75 0.75

Exercise #8

Jacob's mother gives him \( 1.5 and his brother Patrick \( 3.2 .

How much does she give to Jacob and Patrick in total?

Video Solution

Step-by-Step Solution

To work out the total amount that their mother gave Jacob and Abraham, we'll add the numbers vertically as follows:

1.5+3.2 1.5\\+3.2

We'll add from right to left accordingly and get:

4.7 4.7

Answer

4.7 4.7

Exercise #9

Jazmin spends 4.3 4.3 dollars on cucumbers and 5.1 5.1 dollars on tomatoes.

How much does she spend in total?

Video Solution

Step-by-Step Solution

To work out how much Jazmin pays in total, we must add the cost of cucumbers and the cost of tomatoes together:

4.3+5.1 4.3\\+5.1

This gives us the answer:

9.4 9.4

Answer

9.4 9.4

Exercise #10

Jorge spends \( 7.3 on pomegranates and \( 6.4 on bananas.

How much does Jorge pay in total?

Video Solution

Step-by-Step Solution

In order to determine how much Jorge paid, let's begin by adding together the cost of both the bananas and the pomegranates:

7.3+6.4 7.3\\+6.4

Adding from right to left we should obtain the following:

13.7 13.7

Answer

\( 13.7

Exercise #11

Noah bought apples for 11.3 11.3 dollars and grapes for 16.1 16.1 dollars.

How much did Noah pay in total?

Video Solution

Step-by-Step Solution

To know how much Noam paid in total, we'll add the cost of apples with the cost of grapes in the following manner:

11.3+16.1 11.3\\+16.1

We'll add from left to right and get:

27.4 27.4

Answer

\( 27.4