rebecca bhutto

hello how do we convert a number into fraction for example : 1.75 = 7/4 0.111... = 1/9 .001=1/1000 how to solve that? please i need help! Thanks

1. area of a triangle having autitude=7 cm and bass= 4 cm is : ??? 2. supplimentry angle of 84: ?? 3. a boy is asked to run 12 times around a rectangular field measuring 35m by25m find the total distance boy ran. Thanks