Taking x = -4/9, y = 5/12 and z = 7/18, find: the rational number which when added to z gives us x.

Solution:

It is given that

x = -4/9, y = 5/12 and z = 7/18

Now by adding z to A to give x

A + z = x

Substituting the values

A + 7/18 = -4/9

We can write it as

A = -4/9 - 7/18

LCM of 9 and 18 is 18

A = (-4 × 2 - 7 × 1)/18

A = (-8 - 7)/18

A = -15/18

A = -5/6

Therefore, the rational number which when added to z gives us x is -5/6.

✦ Try This: Find a rational number exactly halfway between: 1/5 and 1/3

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 9

NCERT Exemplar Class 7 Maths Chapter 8 Problem 94(c)

Taking x = -4/9, y = 5/12 and z = 7/18, find: the rational number which when added to z gives us x.

Summary:

Taking x = -4/9, y = 5/12 and z = 7/18, the rational number which when added to z gives us x is -5/6

☛ Related Questions:

• Taking x = -4/9, y = 5/12 and z = 7/18, find: the rational number which when multiplied by y to get . . . .
• Taking x = -4/9, y = 5/12 and z = 7/18, find: the reciprocal of x + y
• Taking x = -4/9, y = 5/12 and z = 7/18, find: the sum of reciprocals of x and y