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Byju's Answer
Standard V
Mathematics
Addition of Like Fractions
The LCM of ...
Question
The LCM of
8
9
,
20
27
and
25
54
is ?
A
7
5
27
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B
22
2
9
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C
5
3
27
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D
8
11
9
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Solution
The correct option is
B
22
2
9
L.C.M of
9
,
27
and
54
is
54
Multiply Numerator and Denominator of first fraction by
54
9
=
6
First fraction
8
9
×
6
6
=
48
54
Multiply
Numerator and Denominator of
second fraction by
54
27
=
2
Second fraction
20
27
×
2
2
=
40
54
Multiply
Numerator and Denominator of
third fraction by
54
54
=
1
Third fraction
25
54
×
1
1
=
25
54
Now, since all denominators are same, LCM of numerators
48
,
40
,
25
is
1200
Hence, L.C.M of
48
54
,
40
54
and
25
54
is
1200
54
=
200
9
=
22
2
9
Hence, option B.
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0
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Q.
(1) Simplify:
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