Add (i) ` 7/10 + 2/15 ` (ii) `2(2/3) + 3(1/2)`

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

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

Determine: (i) (2)/(3) of 15 pens (ii) (2)/(3) OF 27 balls (iii) (2)/(3) of 36 balloons

Arrange the following fractions in descending order (i) 3/4, 7/8, 7/12, 17/24 (ii) 2/3, 3/5, 7/10, 8/15

. (i) i= 2 A (ii) i_1 = (10)/(3) A (iii) i_2 = - (4)/(3) A .

Add: (3x^(2) - (1)/(5)x + (7)/(3)) + ((-1)/(4)x^(2) + (1)/(3)x - (1)/(6)) + (-2x^(2) - (1)/(2)x + 5)

Find the following sums : (i) 1 + 2 + 3 + …+ 30 (ii) 1^(2) + 2^(2) + 3^(2) + …+35^(2) (ii) 1^(3) + 2^(3) + 3^(3) +…+ 20^(3) .

Find the difference: (i) 5/7-2/7 (ii) 5/6 - 3/4 (iii) 3 1/5-7/10 (iv) 7-4 2/3 (v) 3 3/10-1 7/15 (vi) 2 5/9-1 7/15

Simplify : (i) 2^(2/3). 2^(1/5) (ii) (1/(3^3))^7 (iii) (11^(1/2))/(11^(1/4)) (iv) 7^(1/2). 8^(1/2)