Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Postby Guest » Sun Nov 18, 2012 8:18 am

Find the sum of 3/4 + 2.3 + 9/3*4.6 = ?
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Re: Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Postby Guest » Fri Jun 21, 2013 7:34 am

Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = 37.85
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Re: Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Postby Jonasmathwork » Wed Jul 03, 2013 2:20 am

Sum of fractions and decimals 3/4 + 2.3 + 9/3 * 4.6
= (3/4) + (23/10) + (414/30)

= (45 + 138 + 828) / 60

= 1011 / 60 = 16.85

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Re: Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Postby Guest » Wed Mar 10, 2021 12:04 am

Change fractions to decimal:
3/4 to decimal divide 1 (the whole) by 4 = .25 times 3 =.75 ------------------ .75
- --------------- +2.3
9/3 to decimal divide 1 (the whole) by 3 = .333333333 times 9 = 3.--------- +3.
time 4.6 = 27.83
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Re: Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Postby Guest » Wed Jul 14, 2021 7:24 pm

Are you seriously saying that you do not know that 9/3= 3?
[tex]2.3= 23/10[/tex] and the least common multiple of 4 and 10 is 20= 4(5)= 10(2)
so 3/4+ 2.3= 3/4+ 23/10= 15/20+ 46/20= 61/20.

9/3*4.6= 3*4.6= 13.8= 138/10= 276/20.

3/4+ 2.3+ 9/3*4.6= 61/20+ 276/20= 337/20.
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Re: Sum of fractions and decimals 3/4 + 2.3 + 9/3*4.6 = ?

Postby Guest » Sun Jul 18, 2021 10:35 am

3/4 + 2.3 + 9/3 * 4.6 = 0.75 + 2.3 + 3 * 4.6 = 3.05 + 13.8 = 16.85
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