1.

11/5+4/21 of 42-18/5÷25/45​

Answer» ONG>Answer:

we follow the BODMAS rule :

B - BRACKET

O - of

D - division

M - multiplication

A - addition

S - subtraction

So,

as there is no bracket, we go with Of FIRST  :

11/5+4/21 of 42-18/5÷25/45​

= 11/5 + 8 - (18/5)/(25/45)

= 11/5 + 8 - 162/25

= 84/5

= 16.8 ≈ 17

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