What is [tex]\frac{1}{5} - \frac{1}{7}[/tex]?
Please explain how to work it out.
Thank you.
Answer (3)
First you have to make your denominators the same. You have 5 and 7 as your denominators. 5 x 7 = 35 So we can use 35 as the common denominator. So you have
1/5 = 7/35
1/7 = 5/35 now you can subtract
2/35
Hope that I was able to help you. :-)
Convert the fractions so they both have the same denominator (bottom part of the fraction)
1/5 = 7/35
This is because 5 7=35, so 1 7=7
1/7 = 5/35
This is because 7 5=35, so 1 5 =5
Then subtract the top numbers to get the answer:
35 7 − 35 5 = 35 2
To subtract 5 1 − 7 1 , find a common denominator (35), convert the fractions to 35 7 and 35 5 , and then subtract the numerators to get 35 2 .
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