Compare
(i) `27//4` and `31//50`
(ii) `4//5` and `7//8`

Compare 4 : 5 and 7 : 9

Add: (i) -3/4 and -4/5 (ii) 2/7 and 2

Add the following rational numbers: (i) -2/3 and 3/4 , (ii) -4/9 and 5/6 , (iii) -5/18 and 11/27 (iv) -7/12 and -5/24 , (v) -1/18 and -7/27 , (vi) 21/(-4) and -11/8

Compare the following fractions using the symbol >or (i) 6/7 and 6/(11) (ii) 3/7 and 5/7 (iii) 2/3 and 8/(12) (iv) 1/5 and 4/(15)

Compare the following fractions using the symbol >or (i) 8/3 and 8/(13) (ii) 4/9 and (15)/8

Divide: (i) 7/8 by 4 1/2 (ii) 6 1/4 by 2 3/5

Expand : (i) (3/5)^4 (ii) (4/7)^5

Add the rational numbers: (i) (31)/(-4)\ a n d(-5)/8 (ii) 5/(36)\ a n d\ (-7)/(12)

Add i 36 and 27 ii -31 and -25

Find the mode of (i) 7, 7, 8, 10, 10, 11,13, 14 (ii) 4, 5, 6, 7, 8, 7, 6, 5, 3, 4, 6, 7, 6