Question

please answer



aranhe in descending oder

2/9; 2/3; 8/21

1/5 ; 3/7 ; 7/10​

Answer 1

Step-by-step explanation:

(i) 2/9, 2/3, 8/21

Solution:-

LCM of 9, 3, 21 = 63

Now, let us change each of the given fraction into an equivalent fraction having 63 as the denominator.

[(2/9) × (7/7)] = (14/63)

[(2/3) × (21/21)] = (42/63)

[(8/21) × (3/3)] = (24/63)

Clearly,

(42/63) > (24/63) > (14/63)

Hence,

(2/3) > (8/21) > (2/9)

Hence, the given fractions in descending order are (2/3), (8/21), (2/9)

(ii) 1/5, 3/7, 7/10

Solution:-

LCM of 5, 7, 10 = 70

Now, let us change each of the given fraction into an equivalent fraction having 70 as the denominator.

[(1/5) × (14/14)] = (14/70)

[(3/7) × (10/10)] = (30/70)

[(7/10) × (7/7)] = (49/70)

Clearly,

(49/70) > (30/70) > (14/70)

Hence,

(7/10) > (3/7) > (1/5)

Hence, the given fractions in descending order are (7/10), (3/7), (1/5)

hope it helps you

Answer 2

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2/9, 2/3, 8/21

⇒ 14/63, 42/63, 24/63 [Converting into like fractions]

⇒ 42/63 > 24/63 > 14/63 [Arranging in descending order]

Therefore, 2/3 > 8/21 > 2/9

____________________

1/5 , 3/7 , 7/10

LCM=70

1/5 =14/70

3/7 = 30/70

7/10 = 49/70

Descending order = 49/70 , 30/70 , 14/70.

=7/10 , 3/7 , 1/5.