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Adding and subtracting mixed numbers with unlike denominators

Could someone help me and explain how to do this problem thank you

Adding And Subtracting Mixed Numbers With Unlike Denominators Could Someone Help Me And Explain How To Do This Problem Thank You class=

Sagot :

Elios07idn

Answer:

Step-by-step explanation: You need to find a the lowest number that the denominators can be timed by. In you're case. You can just times 5 by 2 = 10

So that both the denominators are 10. And the denominator that was once 5. The numerator of that fraction also needs to be timed by 2.

So then you have 7 18/10 - 6 15/10

Then you can convert them to to proper fractions 8 8/10 - 7 5/10

Then you can take away the fractions so it's

8 8/10 - 7 5/10 = 1 3/10
convert both numbers into improper fractions by multiplying the whole number by the denominator and adding the numerator

44/5 - 75/10

then you make them have the same denominator (in this case it would be 10) - (44x2)/(5x2)

88/10 - 75/10

then you take away each number as you would normally (88-75)

13/10
and finally, convert
1 3/10
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