Question

simplify the fractions
* 1/8+1/9-15/18
* -3/4-5/6-9(-17/8)
* 1/11+11/10+(-22/5)

Answer 1

Answer:1/8+1/9-15/18

1. *(1/8)9+(1/9)8-15/18

9+8=17/72

17/72-15/18

(306+1080)/1296

1386/1296

1 5/72

*-3/4-5/6-9(-17/8)

-3/4-5/6+(19.125)

19.125=3/4+5/6

(18+20)/24=19.125

38/24-19.125

=-17.542

Step-by-step explanation:i can only go till thre not sure of my answers 100 percent

make sure ur denominater are the same so u can subtract or add

Answer 2

Answer

We need to simplify the fractions as per your question.

i ) $\rm \frac { 1 } { 8 } + \frac { 1 } { 9 } - \frac { 15 } { 18 }$

Firstly we need a same number as denominator.

So we will take L.C.M of it.

LCM = 72

$\rm \frac { 9 } { 72 } + \frac { 8 } { 72 } - \frac { 60 } { 72 }$

$\rm\boxed{ \frac { -43 } { 72 }}$

ii ) $\rm \frac { -3 } { 4 } - \frac { 5 } { 6 } + \frac { 153 } { 8 }$

Now LCM = 24

$\rm \frac { -18-20+459 } { 24 }$

$\rm\boxed{ \frac { 421 } { 24 }}$

iii ) $\rm \frac { 1 } { 11 } + \frac { 11 } { 10 } - \frac { 22 } { 5 }$

Now LCM = 110

$\rm \frac { 10+121-484 } { 110 }$

$\rm \boxed{\frac { -353 } { 110 }}$