How do you solve #-\frac { 2} { 5} - ( - \frac { 3} { 4} )#?

Answer 1

#7/20#

#-2/5-(-3/4)#
#:.=-2/5+3/4#
#:.=((4 xx -2)+(5 xx 3))/20#
#:.=(-8+15)/20#
#:.=7/20#
Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

To solve the expression -\frac { 2} { 5} - ( - \frac { 3} { 4} ), you first need to distribute the negative sign inside the parentheses. This changes the subtraction inside the parentheses to addition. So, the expression becomes -\frac { 2} { 5} + \frac { 3} { 4}.

Next, you need to find a common denominator for the fractions, which in this case is 20. So, you rewrite the fractions with a denominator of 20:

-\frac { 2 \times 4} { 5 \times 4} + \frac { 3 \times 5} { 4 \times 5}

This simplifies to:

-\frac { 8} { 20} + \frac { 15} { 20}

Now, you can add the fractions:

-\frac { 8} { 20} + \frac { 15} { 20} = \frac { 15 - 8} { 20} = \frac { 7} { 20}

So, -\frac { 2} { 5} - ( - \frac { 3} { 4} ) simplifies to \frac { 7} { 20}.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7