Question

! WHAT IS 3 3/8 - 1 3/4=

Answer 1

The given expression is

`3(3)/(8)-1(3)/(4)`
`\text{Use a}(b)/(c)=(a* c+b)/(c)\text{.}`

`3(3)/(8)-1(3)/(4)=(3*8+4)/(8)-(1*4+3)/(4)`

`=(28)/(8)-(7)/(4)`

LCM of 8 and 4 is 8, making the denominator 8.

`=(28)/(8)-(7*2)/(4*2)`

`=(28)/(8)-(14)/(8)`

`=(28-14)/(8)`

`=(14)/(8)`

`=(2*7)/(2*4)`
`=(7)/(4)`
`=(1*4+3)/(4)`

`=1(3)/(4)`

Hence the answer is

`3(3)/(8)-1(3)/(4)=1(3)/(4)`