Question

| 10 - 7 | over 4 - | -15 + 8 | over 6simplified

Answer 1

Start from

`(|10-7|)/(4) - (|-15+8|)/(6)`

Perform the additions inside the absolute values:

`(|3|)/(4) - (|-7|)/(6)`

The absolute value does nothing to positive numbers, while it switches the sign of negative numbers, so |3|=3 and |-7|=7:

`(3)/(4) - (7)/(6)`

Transform both fractions so that they have the same denominator:

`(9)/(12) - (14)/(12) = (-5)/(12)`