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.



Share this page: What’s this?

Recent Articles

RSS

  1. Fundamental Geometrical Concepts | Point | Line | Properties of Lines

    Apr 19, 24 01:50 PM

    Point P
    The fundamental geometrical concepts depend on three basic concepts — point, line and plane. The terms cannot be precisely defined. However, the meanings of these terms are explained through examples.

    Read More

  2. What is a Polygon? | Simple Closed Curve | Triangle | Quadrilateral

    Apr 19, 24 01:22 PM

    Square - Polygon
    What is a polygon? A simple closed curve made of three or more line-segments is called a polygon. A polygon has at least three line-segments.

    Read More

  3. Perpendicular Lines | What are Perpendicular Lines in Geometry?|Symbol

    Apr 19, 24 02:46 AM

    Perpendicular Lines
    In perpendicular lines when two intersecting lines a and b are said to be perpendicular to each other if one of the angles formed by them is a right angle. In other words, Set Square Set Square If two…

    Read More

  4. Simple Closed Curves | Types of Closed Curves | Collection of Curves

    Apr 18, 24 01:36 AM

    Closed Curves Examples
    In simple closed curves the shapes are closed by line-segments or by a curved line. Triangle, quadrilateral, circle, etc., are examples of closed curves.

    Read More

  5. Tangrams Math | Traditional Chinese Geometrical Puzzle | Triangles

    Apr 18, 24 12:31 AM

    Tangrams
    Tangram is a traditional Chinese geometrical puzzle with 7 pieces (1 parallelogram, 1 square and 5 triangles) that can be arranged to match any particular design. In the given figure, it consists of o…

    Read More