## shay24 Group Title whats 2/5 - 1/7 one year ago one year ago

• This Question is Open
1. Romeo Group Title

@Yahoo! And the problem of giving answers continues

2. Yahoo! Group Title

@Romeo u r correct

3. Yahoo! Group Title

this time we should work him out

4. Yahoo! Group Title

@shay24 look and previous question and procede!

5. shay24 Group Title

ok

6. shay24 Group Title

i dont understand

7. GiggleSquid Group Title

mathway.com dude...

8. Romeo Group Title

$\frac{2}{5} - \frac{1}{7}$find the lowest common denominator

9. Calcmathlete Group Title

Alright. I'm going to break down the process for you. Step 1: Find a Common Denominator Find the least common multiple (LCM) of 5 and 7. Obviously, it's 35 since $$7 \times 5 = 35$$. Step 2: Adapt the fractions by multiply the numerator and denominator of the fraction(s) by the same number so that the LCM is in the denominator. $\frac 25 - \frac17 \implies \frac25 \times \frac77 - \frac17 \times \frac55 \implies \frac{14}{35} - \frac{5}{35}$Step 3: Simplify by combining like terms.$\frac{14}{35} - \frac{5}{35} = ?$

10. TheMusician Group Title

Aw....You guys beat me too it....

11. Calcmathlete Group Title

lol...gotta be faster than that :)

12. shay24 Group Title

is it 9/35

13. Calcmathlete Group Title

Yup :) Good job!

14. shay24 Group Title

thanks

15. Calcmathlete Group Title