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OlgaM077 [116]
3 years ago
11

Estimated difference of 7 17/20 - 6 2/5

Mathematics
1 answer:
amm18123 years ago
5 0
Is always easier to subtract or add fractions with the same denominator, so
6 2/5 is the same as 6  8/20 
I would suggest turning them both to improper fractions, 
(You multiply 6 by the denominator 20 and get 120 then add 8)
6 8/20 = 128/20 
and then do the same with 7 17/20  (Mutiply 7 and 20 and then add 17)
7 17/20 = 157/20

157/20 - 128/20 = 29/20 or 1 9/20

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A certain computer loses half of its value every two years. If the value of the computer after 3 years is 425, what was the init
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