निम्नलिखित को अवरोही क्रम में रखिए :
(i) `(2)/(9), (2)/(3), (8)/(21) " (ii) " (1)/(5), (3)/(7), (7)/(10)`

निम्नलिखित को आरोही क्रम में लिखे : (1)/(5), (3)/(7), (7)/(10), (1)/(6)

Arrange the following in descending order : (i) (2)/(9),(2)/(3),(8)/(21) (ii) (1)/(5),(3)/(7),(7)/(10)

Arrange the following in descending order : (i) 2/9, 2/3, 8/21 (ii) 1/5, 3/7, 7/10

Simplify: (i) 4/9-:2/3 (ii) 3 3/7-:8/(21) (iii) 15 3/7-:1(23)/(49)

(i) (5^(2))^(7) = (ii) (7^(3)) (9^(3)) =

Simplify: (i) 7/18 + 5/6 , (ii) (-9/25) + 3/5 , (iii) (-8/35) + (-2/7)

Simplify : [ ((- 3 )/( 2) xx (4)/(5) ) + ((9)/(5) xx (-10)/( 3)) - ((1)/(2)xx (3)/(4)) ] div [ ((21)/( 9) xx (3)/(7)) +((7)/(8) xx (16)/(14)) ]

Simplify: ((4)/(7)+(-8)/(9) +(-5)/(21) +(1)/(3)) .