(3) Add
11/10+5/1/15+4=11/10
Answers
Now, let us change each of the given fractions into an equivalent fraction with 72 as its denominator.
3
4
=
3×9
4×9
=
27
36
5
6
=
5×6
6×6
=
30
36
7
9
=
7×4
9×4
=
28
36
11
12
=
11×3
12×3
=
33
36
Clearly,
27
36
<
28
36
<
30
36
<
33
36
Hence,
3
4
<
7
9
<
5
6
<
11
12
∴ The given fractions in ascending order are
3
4
,
7
9
,
5
6
and
11
12
.
(ii) The given fractions are:
4
5
,
7
10
,
11
15
and
17
20
.
LCM of 5, 10, 15 and 20 = 60
Now, let us change each of the given fractions into an equivalent fraction with 60 as its denominator.
4
5
=
4×12
5×12
=
48
60
7
10
=
7×6
10×6
=
42
60
11
15
=
11×4
15×4
=
44
60
17
20
=
17×3
20×3
=
51
60
Clearly,
42
60
<
44
60
<
48
60
<
51
60
Hence,
7
10
<
11
15
<
4
5
<
17
20
∴ The given fractions in ascending order are
7
10
,
11
15
,
4
5
and
17
20
.