Question

How do you divide `3079.48 -: 66.8`?

Answer 1

`3079.48-:66.8=46.1`

Explanation:

To divide `3079.48` by `66.8`, let us first put them as fractions

`3079.48-:66.8=307948/100-:668/10=307948/100xx10/668`

and as `668` and `307948` are divisible by `4`, above is equal to

= `(76987cancel(307948))/(10cancel(100))xx(1cancel(10))/(167cancel(668))`

Although `167` is prime (as it is not divisible by any prime number up to `11`, the prime number just before square root of `167`), number `76987` is divisible by `167` as `76987=167xx461`

Hence `3079.48-:66.8=76987/10xx1/167`

= `(461cancel(76987))/10xx1/(1cancel(167))=461/10=46.1`