Question

what is the missing fraction 1/5-?=3/40

Answer 1

the two fraction together would result in a denominator 40. Normally if you add or detract two fractions with different denominators you multiply the denominators to create a new one. So if 5.? = 40 then ?=40/5. What is ?

Answer 2

2/5?

Answer 3

If you divide 40 by 5, what do you get?

Answer 4

9?

Answer 5

No, 8

Answer 6

45/5=9

Answer 7

so it will be 1/8?

Answer 8

Ok, so now you know that

\[\frac{ 1 }{ 5 }+\frac{ ? }{ 8 }=\frac{ 3 }{ 40 }\]

Now let's put both of those fractions to 40

\[\frac{ 1.8 }{ 5.8 }-\frac{ ? }{ 5.8 }=\frac{ 3 }{ 40 }\]
\[\frac{ 8 }{ 40 }-\frac{ ? }{ 40 }=\frac{ 3 }{ 40 }\]

That would mean the missing fraction is

\[\frac{ 5 }{ 40 }\]

Now let's simplify that back to /8

Answer 9

And yes 5/40=1/8

Answer 10

thank you

Answer 11

Gladly done :-)