Please answer this question:The cost of a pen is Rs {Six two by three} 6 2/3 and that of a pencil is Rs {Four one by six} 4 1/6.Which costs more and by how much ? ; Please explain how to do this.
cost of a pen = 6 whole 2/3 = rs 20/3
cost of a pencil = 4 whole 1/6 = rs 25 /6
since their denominators r not equal we cannot compare them . so first of all we will make the denominators equal
- find the lcm of 3 and 6 . it will come 6
- now find their numerators ... i hope u know the way ... it will come 40/6 and 25/6 ...
- which is greater - cost of pen which is 40/6 or cost of pancil which is 25/6 .
- obviously 25/6 - cost of pencil
understood till here ?