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AleksAgata [21]
3 years ago
8

Adding and subtracting mixed numbers with unlike denominators

Mathematics
2 answers:
Agata [3.3K]3 years ago
7 0

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

marysya [2.9K]3 years ago
4 0
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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