Find the difference of `(21)/(25)\ a n d(18)/(20)` (ii) `3 3/(10)\ a n d\ 2 7/(15)`

Find the difference of : 2/3\ a n d\ 6/7

Find the difference of : 2/3\ a n d\ 6/7

Find the difference of : 5/(18)\ a n d\ 4/(15)

Find the difference of : 5/(18)\ a n d\ 4/(15)

Find the difference of (13)/(24)\ a n d7/(16) (ii) 6\ a n d(23)/3

Find the difference of (13)/(24)\ a n d7/(16) (ii) 6\ a n d(23)/3

Add: 7/(10)a n d2/(15)

Add: 7/(10)a n d2/(15)

Which of the following pairs of rational numbers are equal? (-7)/(21)\ a n d3/(-9) (ii) (-8)/(-14)\ a n d(13)/(21)

Which of the following rational numbers are equal? (-7)/(21)\ a n d3/(-9) (ii) (-8)/(-14)\ a n d(13)/(21)