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

Solution:

It is given that

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

Now by adding x to A in order to obtain y

A + x = y

Substituting the values

A + (-4/9) = 5/12

We can write it as

A = 5/12 - (-4/9)

A = 5/12 + 4/9

LCM of 12 and 9 is 36

A = (5 x 3 + 4 × 4)/36

A = (15 + 16)/36

A = 31/36

Therefore, the rational number which when added to x gives y is 31/36.

✦ Try This: Find a rational number exactly halfway between: 1/9 and 1/5

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

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

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

Summary:

Taking x = -4/9, y = 5/12 and z = 7/18, the rational number which when added to x gives y is 31/36

☛ Related Questions:

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