`(-3/8)xx(28/25)-(-3/8)xx(3/25)`

Simplify : ((25)/8xx2/5)-\ (3/5xx(-10)/9)

If (5^(8)xx6^(7))/((25)^(3)xx6^(4))= (3125)^(b)xx a^(3) , then find the value of a + b.

Simplify : ((8)/(27))^(-1//3)xx((25)/(4))^(1//2)xx((4)/(9))^(0)+((125)/(64))^(1//3)

i)25xx(t^(-4))/(5^(3)xx10xx t^(-8))ii)3^(-5)xx10^(-5)xx(125)/(5^(-7)xx6^(-5))

Evaluate ((25)^(3//2)xx(243)^(3//5))/((16)^(5//4)xx(8)^(4//3))

Simplify: (i) (2/5 xx 5/8) + (-3/7 xx 14/-15) , (ii) (-14/3 xx -12/7) + (-6/25 xx 15/8) (iii) (6/25 xx -15/8) - (13/100 xx -25/26) , (iv) (-14/5 xx -10/7) -(-8/9 xx 3/16)

The number of prime factors in ((1)/(6))^(12)xx(8)^(25)xx((3)/(4))^(15) is

Simplify. (i) (25 xx t^(-4))/(5^3 xx 10 xx t^(-8)) (t != 0) (ii) (3^(-5) xx 10^(-5) xx 125)/(5^(-7) xx 6^(-5))

Write the proper number in the empty boxes : 25/8=(25xx125)/(8xx?)=(3125)/1000=?