Question

working
please work by work
​

Answer 1

Answer:

1. 3× -2 +5 = -6+5 = -1
2. 3/a - 3/b + 1/4 = 3/-2 - 3/3 + 1/4 = 2/3 - 3/3 + 1/4 = 4× 2 - 4 × 3 + 12 × 1/ 12 = 8-12+12/12 = 16/12 = 4/3.

Step-by-step explanation:

in the first one we put the value of m = -2 then 3 × -2 + 5

in the second one we put the values of a and b then we change the denominator of the first fraction by taking its reciprocal then we take the l.c.m of 3,3,4 which is 12 then we divide 12 by 3,3,4 and divide that by the numerator.