Question

Please help me with 168÷45

Answer 1

please help me with 168÷45​

we know that

168=(2^3)(3)(7)

45=(3^2)(5)

so

`(168)/(45)=(2^3\cdot3\cdot7)/(3^2\cdot5)=(2^3\cdot7)/(3\cdot5)=(56)/(15)`

therefore

Convert to mixed number

56/15=45/15+11/15=3+11/15=3 11/15

therefore

the answer is

3 11/15 or 56/15

Part 2

Estimate te quotient using compatible numbers

so

168:45------------> 180:45=4do

Remember that

Compatible numbers are numbers that are easy to compute mentally