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42 votes
42 votes
Simplify................................................


\displaystyle{5 (1)/(6) + 2 (1)/(3) - 5 (11)/(12) }


User Gergo
by
3.0k points

2 Answers

19 votes
19 votes

Ⲁⲛ⳽ⲱⲉⲅ :


\quad\hookrightarrow\quad \sf {(19)/(12)\: or \: 1(7)/(12) }

Ⲋⲟⳑⳙⲧⳕⲟⲛ :

We will solve the given mixed fraction in 2 steps :

  • Converting into improper fraction


\implies\quad \tt {5(1)/(6)+2(1)/(3)-5(11)/(12) }


\implies\quad \tt { ((6* 5)+1)/(6)+((3* 2)+1)/(3)-((12* 5)+11)/(12)}


\implies\quad \tt { (30+1)/(6)+(6+1)/(3)-(60+11)/(12)}


\implies\quad \tt { (31)/(6)+(7)/(3)-(71)/(12)}

  • Taking L.C.M


\implies\quad \tt { ((2*31)+(4* 7)-(1* 71))/(12) }


\implies\quad \tt { (62+28-71)/(12)}


\implies\quad \tt { (90-71)/(12)}


\implies\quad \tt {(19)/(12) }


\implies\quad\underline{\underline {\pmb{\tt {1(7)/(12) }}}}

User Ameena
by
2.8k points
7 votes
7 votes

Answer:

see below:-

Explanation:

Given,


\displaystyle{5 (1)/(6) + 2 (1)/(3) - 5 (11)/(12) }

  • Convert the mixed fractions into improper fractions.


\displaystyle{ (31)/(6) + (7)/(3) \ - (71)/(12) }

  • Take LCM of the denominators:-

LCM of 6,3 and 12=3×2×1×1×2=12


\therefore{\displaystyle{ (31)/(6) + (7)/(3) - (71)/(12) = (31 * 2 + 7 * 4 - 71 * 1)/(12) }}


= \displaystyle{ (62 + 28 - 71)/(12) }


\displaystyle{ = (90 - 71)/(12) }


\displaystyle{ = (19)/(12) }

  • Convert the improper fractions into mixed fraction:-


\displaystyle{1 (7)/(12) }

User MBentley
by
2.8k points