1.

Perimeter of rectangle is 15 3/7 . if the length is 4 2/7 .find its breadth

Answer»

Perimeter = 15 3/7 units (Given)

Length = 4 2/7 (Given)


Find the BREADTH:

Perimeter = 2 ( Length + Breadth)

Substitute Perimeter = 15 3/7 and Length = 4 2/7 :

15 3/7 = 2 (4 2/7 + Breadth)

WRITE as IMPROPER FRACTION:

108/7 = 2( 30/7 + Breadth)

Distribute 2:

108/7 = 60/7 + 2Breadth

Subtract 60/7 from both SIDES:

2Breadth = 108/7  - 60/7

2Breadth = 48/7

Divide both sides by 2:

Breadth = 48/7 ÷ 2

Breadth = 24/7

Change to improper fraction:

Breadth = 3 3/7 units


Answer: Breadth = 3 3/7 units



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