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15 votes
15 votes
Please help!! This is solving equations with mixed number fractions.

7/8X + 4/5 = 1 3/10

4/5X + 4/9 = 1 3/10

5/8X + 4/9 = 1 1/9

User Fschuindt
by
2.6k points

2 Answers

14 votes
14 votes
X= 4/7 X=77/72 X=16/15


User KeithP
by
2.7k points
17 votes
17 votes

Answer:

Explanation:

7/8x + 4/5 = 1 3/10


(7)/(8)x+(4)/(5) =(13)/(10)


(35)/(40)x+(32)/(40) =(52)/(40)


40((35)/(40)x+(32)/(40) =(52)/(40) )


35x+32=52


-32
-32


35x = 20


(35x)/(35) =(20)/(35)


x=(4)/(7)

4/5X + 4/9 = 1 3/10


(4)/(5) x + (4)/(9) = (13)/(10)


(72)/(90) x + (40)/(90) = (117)/(90)


90((72)/(90) x + (40)/(90) = (117)/(90))


72x+40=117


-40
-40


72x=77


(72x)/(72)=(77)/(72)


x=(77)/(72) =5(5)/(72) =1.07

5/8X + 4/9 = 1 1/9


(5)/(8) x + (4)/(9) = (10)/(9)


(45)/(72) x + (32)/(72) = (80)/(72)


72((45)/(72) x + (32)/(72) = (80)/(72) )


45x+32=80


-32
-32


45x=48


(45x)/(45)=(48)/(45)


x=(16)/(15)

Hope this helps!

User Ohad Zadok
by
2.7k points
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