Subtraction of Hours, Minutes and Seconds

We will discuss here about the subtraction of hours, minutes and seconds.

Let us consider some of the examples on subtracting time.

1. Subtract 24 hr. 15 min. 38 sec. from 45 hr. 20 min. 54 sec.

Subtraction of Hours

We subtract hours, minutes and seconds respectively.


2. Subtract 5 hr. 16 min. 48 sec. from 12 hr. 28 min. 16 sec.

Subtraction of Hours and Minutes

16 sec. < 48 sec.

So, we borrow 1 min.

= 60 sec. From 28 min.

60 sec. + 16 sec. = 76 sec.

76 sec. – 48 sec. = 28 sec.


3. Subtract 14 hr. 46 min. 32 sec. from 22 hr. 28 min. 17 sec.

Subtracting Time

17 sec. < 32 sec.

So, we borrow 1 min.

= 60 sec. from 28 min.

60 sec. + 17 sec. = 77 sec.

77 sec. – 32 sec. = 45 sec.

27 min < 46. So we borrow 1 hr.

= 60 min . from 22 hr.

60 min. + 27 min. = 87 min.

87 min – 46 min. = 41 min.


4. Subtract 20 hr. 52 min. 46 sec. from 40 hr. 19 min. 20 sec.

Subtract Hours Minutes

20 sec. < 46 sec.

So, we borrow 1 min.

= 60 sec. from 19 min.

60 sec. + 20 sec. = 80 sec.

80 sec. - 46 sec. = 36 sec.

18 min < 52 min.

So we borrow 1 hr.

= 60 min . from 40 hr.

60 min. + 18 min. = 78 min.

78 min - 52 min. = 26 min.










4th Grade Math Activities

From Subtraction of Hours, Minutes and Seconds to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.




Share this page: What’s this?

Recent Articles

RSS

  1. What is Area in Maths? | Units to find Area | Conversion Table of Area

    Jul 17, 25 01:06 AM

    Concept of Area
    The amount of surface that a plane figure covers is called its area. It’s unit is square centimeters or square meters etc. A rectangle, a square, a triangle and a circle are all examples of closed pla…

    Read More

  2. Worksheet on Perimeter | Perimeter of Squares and Rectangle | Answers

    Jul 17, 25 12:40 AM

    Most and Least Perimeter
    Practice the questions given in the worksheet on perimeter. The questions are based on finding the perimeter of the triangle, perimeter of the square, perimeter of rectangle and word problems. I. Find…

    Read More

  3. Formation of Square and Rectangle | Construction of Square & Rectangle

    Jul 16, 25 11:46 PM

    Construction of a Square
    In formation of square and rectangle we will learn how to construct square and rectangle. Construction of a Square: We follow the method given below. Step I: We draw a line segment AB of the required…

    Read More

  4. Perimeter of a Figure | Perimeter of a Simple Closed Figure | Examples

    Jul 16, 25 02:33 AM

    Perimeter of a Figure
    Perimeter of a figure is explained here. Perimeter is the total length of the boundary of a closed figure. The perimeter of a simple closed figure is the sum of the measures of line-segments which hav…

    Read More

  5. Formation of Numbers | Smallest and Greatest Number| Number Formation

    Jul 15, 25 11:46 AM

    In formation of numbers we will learn the numbers having different numbers of digits. We know that: (i) Greatest number of one digit = 9,

    Read More