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21 May 2014, 21:23
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Simplify 4.5−2∗3/6+1/4^2 divided by 0.75
45/10- 1+1/16 divided by 3/4
9/2 - 17/16 dividend by 3/4
72-17/16 divided by 3/4
55/16 *4/3
But in the GMAT club test answer it comes 57/16 * 4/3
In that subtraction is done before addition. But I did addition before subtraction.
Can anyone please clarify PEMDAS rule for me? I understand multiplication and division comes before + and - but does not understand rule between + and - with out parenthes, * and division with out parenthes.
Thanks in advance..
45/10- 1+1/16 divided by 3/4
9/2 - 17/16 dividend by 3/4
72-17/16 divided by 3/4
55/16 *4/3
But in the GMAT club test answer it comes 57/16 * 4/3
In that subtraction is done before addition. But I did addition before subtraction.
Can anyone please clarify PEMDAS rule for me? I understand multiplication and division comes before + and - but does not understand rule between + and - with out parenthes, * and division with out parenthes.
Thanks in advance..
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21 May 2014, 21:32
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drkomal2000
9/2 -1 +1/16 -----> (9/2 -15/16)/3/4 or 57/16*4/3
Your understanding is correct. But you made a silly mistake
Hope it helps
Updated on: 22 May 2014, 00:47
Originally posted by JapinderKaur on 22 May 2014, 00:38.
Last edited by JapinderKaur on 22 May 2014, 00:47, edited 1 time in total.
Last edited by JapinderKaur on 22 May 2014, 00:47, edited 1 time in total.
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Just to break down Wounded Tiger's reply one step further:
\(-1+\frac{1}{16}\) = \(\frac{(-16+1)}{16}\) =\(\frac{-15}{16}\)
Here are two more similar practice problems for you:
1. What is the value of n =\(-\sqrt{\frac{9}{100}} + \frac{1}{3}/\frac{1}{6}+ 4 - \frac{1}{5}\)?
2. Find the value of n = \([6*-4/8+\frac{9}{-3}]/[20/-4+2]\).
Hope I could help!
\(-1+\frac{1}{16}\) = \(\frac{(-16+1)}{16}\) =\(\frac{-15}{16}\)
Here are two more similar practice problems for you:
1. What is the value of n =\(-\sqrt{\frac{9}{100}} + \frac{1}{3}/\frac{1}{6}+ 4 - \frac{1}{5}\)?
2. Find the value of n = \([6*-4/8+\frac{9}{-3}]/[20/-4+2]\).
Hope I could help!
