Question

How do you subtract `3\frac { 1} { 5} - 2\frac { 6} { 7}`?

Answer 1

`3 1/5-2 6/7=12/35`

Explanation:

`3 1/5-2 6/7`

= `(3xx5+1)/5-(2xx7+6)/7`

= `16/5-20/7`

= `(16xx7)/(5xx7)-(20xx5)/(7xx5)`

= `112/35-100/35`

= `12/35`