Question

Work out
a) 3 /4 x 1/2
b) 4/7x 21/40

Answer 1

a)

`= (3)/(4) * (1)/(2) \\`

`= (3)/(8) \\`

b)

`(4)/(7) * (21)/(40) \\`

`= (84)/(280) \\`

Change it into lowest term

`= (12)/(40) \\`

`= (6)/(20) \\ \\ = (3)/(10)`