Question

24.) What must be added to -4/7to get 7/10?​

Answer 1

Answer:

89/70 or $1\frac{19}{70}$

89/70 must be added to -4/7 to get 7/10

Step-by-step explanation:

Set up an equation:

-4/7 + x = 7/10

Keep in mind, x represents the number that must be added in order to get to 7/10.

Add -4/7 to both sides:

In order to add, find the GCF of 7 and 10, which would be 70.

Multiply denominators by 70 and you must reflect that with the numerator.

40/70 + 49/70 = 89/70

So, 89/70 can be added to -4/7 to get 7/10

Convert to mixed form

89/70 converted to mixed form is 1 19/70

Answer 2

Answer:

Step-by-step explanation:

Let x be added to -4/7

No. to get=7/10

ATQ,

x+(-4/7)=7/10

x-4/7=7/10

(on transposing LHS to RHS)

x=7/10+4/7

x=(7*7+4*10)/70  (LCM OF 7 AND 10 IS 70)

x=(49+40)/70

x=89/70

so, 89/70 must be added to -4/7 to get 7/10

Hope it helps. :)

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