How do you simplify #1/2 + (-3/4) -(-3/5)# using PEMDAS?

1 Answer
Aug 4, 2016

Answer:

#7/20#

Explanation:

This question does not really require order of operations, because there are only addition and subtraction operations. They can be done in any order, as long as the correct sign is used with the correct term.

After removing the brackets we will just have fractions to work with.

#1/2 + (-3/4) -(-3/5)#

=#1/2 -3/4 +3/5" find the LCD"#

= #(10-15+12)/20 = 7/20#