69,043 views
13 votes
13 votes
Find m+n÷m-n .If m=4/5 and n=5/4.Please answer correctly shoing detailed working​

User Napster Scofield
by
2.8k points

1 Answer

9 votes
9 votes

Answer:


1 (9)/(80)

Explanation:

To solve this you have to use BODMAS theorem

BODMAS means,

B = brackets

O = of

D = division

M = multiplication

A = addition

S = subtraction

In this sum first you have to do division and then you can do addition

Let's Solve now,


m + n / m - n \\ (4)/(5) + (5)/(4) / (4)/(5) - (5 )/(4) \\ (4)/(5) + (5)/(4) * (5)/(4) - (5)/(4) \\ (4)/(5) + (25)/(16) - (5)/(4) \\ (4 * 16 + 25 * 5)/(5 * 16) - (5)/(4) \\ (64 + 125)/(80) - (5)/(4) \\ (189)/(80) - (5)/(4) \\ (189)/(80) - (5 * 20)/(4 * 20) \\ (189 - 100)/(80) \\ (89)/(80) \\ = 1 (9)/(80)

hope this helps you

let me know if you have another questions :-)

User Kengcc
by
3.1k points