Question

5/7 minus 2/9 please

Answer 1

`(31)/(63)`

Explanation:

1. Find the LCM of 7 and 9: 63
2. Find how much we increased each number to get to 63: we increased 7 by 9, and we increased 9 by 7
3. Multiply the numerators by the corresponding increase numbers: 5 × 9 = 45, and 2 × 7 = 14
4. Put the new numerators over the new denominators, so it looks like this:
   `(45)/(63)` and
   `(14)/(63)`
5. Finally, subtract one from the other and here's what you get:
   `(31)/(63)`

Therefore, the answer is
`(31)/(63)`.

Answer 2

`\large \boxed{31/63}`

Explanation:

5/7 - 2/9

Make denominators equal by LCM.

(5 × 9)/(7 × 9) - (2 × 7)/(9 × 7)

45/63 - 14/63

Subtract fractions since denominators are equal.

(45 - 14)/63

31/63