Question

b.
-5 8 -11
+ +
8 9 12​

Answer 1

Answer:

-47/72

Step-by-step explanation:

-5/8+8/9-11/12

LCM is 72

(-45+64-66)/72

=47/72

Answer 2

Step-by-step explanation:

$\frac{ - 5}{8} + \frac{8}{9} + \frac{ - 11}{12}$

$take \: lcm \: of \: 8,9,12 = 72$

$\frac{ - 5}{8} \times \frac{9}{9} + \frac{8}{9} \times \frac{8}{8} + \frac{ - 11}{12} \times \frac{6}{6}$

$\frac{ - 45}{72} + \frac{64}{72} + \frac{ - 66}{72}$

$\frac{ - 45 + 64 + - 66}{72}$

$\frac{ - 47}{72}$