Question

The Product Of Two Rational No. Is -7/15.If One Of Them Is -3/20,find the other.
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Answer 1

Answer:

-21/60

Step-by-step explanation:

let the other be x

x + -3/20 = -7/15

x= -7/15 + 3/20

the lcm of 15 and 20 is 60

x= -28/60 + 9/60

x= -21/60

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Answer 2

Answer:

x = 28/9

Step-step explanation:

Given that,

Product of two Rational Number = -7/15

1st one = -3/20

2nd one = x

So,

(-3)/20×x=(-7)/15

Transpose (-3)/20 to R.H.S

x=(-7)/15×(-20)/3

x=(-7)/3×(-4)/3

x=28/9