Question

Can anyone help me with this one please
simplify 3/5+(-1/7) all over 1and1/2

Answer 1

\[\frac{\frac{3}{5}-\frac{1}{7}}{1\frac{1}{2}}\] ?

Answer 2

if so, make the denominator an improper fraction
\[ 1 \frac{1}{2}= \frac{3}{2} \]
multiply top and bottom by 2/3 to get rid of the denominator
\[\frac{(\frac{3}{5}-\frac{1}{7})\cdot \frac{2}{3}}{\cancel{\frac{3}{2}}\cdot\cancel{\frac{2}{3}}}\]

Answer 3

Can you finish this?

Answer 4

I'll give it a try

Answer 5

video on adding fractions
http://www.khanacademy.org/video/adding-fractions-with-unlike-denominators?topic=fractions

Answer 6

multiplying fractions
http://www.khanacademy.org/video/multiplying-fractions?topic=fractions

Answer 7

If I did this correctly the answer would be 32/105 ?

Answer 8

Thanks for the links

Answer 9

\[(\frac{3}{5}-\frac{1}{7})= \frac{3}{5}\cdot\frac{7}{7}-\frac{1}{7}\cdot \frac{5}{5}= \frac{21}{35}-\frac{5}{35}\]

Answer 10

which becomes 16/35 times 2/3 = 32/105

Answer 11

Looks like you know what you are doing.