Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 118 - Touchpad Mathematics_Ver1.0_C4
P. 118

    FrACTionS oF A CoLLeCTion

                A collection can also be taken as a whole.
                Look at the kites shown here. What fraction of the collection are red kites?

                One out of the three kites is red.

                       Number of red kites             1
                So,                                =
                       Total number of kites          3

                        1
                Thus,   of the kites are red.
                        3

                Finding Fractions

                Half (two quarters) of a Collection

                Look at the given collection of balls.
                               1
                Let us find   of the collection of 10 balls.
                               2

                We divide the collection into two equal parts by a
                                                                    1
                line as shown. Each part represents half ( ) of the collection.
                                                                    2
                                          1
                So, 10 ÷ 2 = 5  or          of 10 = 5.
                                         2                                                           To find half of a

                Thus, half of 10 balls is 5 balls.                                                   collection,  we
                                                                                                     divide it by 2.
                one-third of a Collection

                Look at the given collection of balls. It has 12 balls.

                               1
                Let us find   of the given collection.
                              3
                 1
                    means 1 out of 3 equal parts.
                 3

                      1                                                                        To find one-third of a
                So,   of 12  or  12 ÷ 3 = 4.                                                   collection, we divide
                     3                                                                         it by 3.
                Thus, one-third of 12 balls is 4 balls.

                       116       Mathematics 3

| 113 114 115 116 117 118 119 120 121 122 123 |