45/4÷18/5of 20/7+1/4
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Answer:
19575/2016 or 2175/224
Step-by-step explanation:
of means multiply (×)
So the question is 45/4÷18/5×20/7+1/4.
First we will do 45/4 ÷ 18/5 then we will do 20/7+1/4
45/4÷18/5
=45/4×5/18 (doing reciprocal)
=225/72
20/7+1/4 (find the LCM of denominator to add)
=80/28+7/28 (the LCM of 7 and 4 is 28)
=87/28
Now we will do multiplication (225/72×87/28)
=19575/2016.
We can reduce this number the answer is 2175/224.
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