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Simplify: 1/4+1/5+(-3/4+1/8)

A. 23/40
B. -5/8
C. 1/20
D. 3/16

User Raulucco
by
7.8k points

2 Answers

1 vote

Answer:

-7/40 (None of the above)

Explanation:

Given problem,

→ (1/4) + (1/5) + ((-3/4) + (1/8))

Let's simplify the problem,

→ (1/4) + (1/5) + ((-3/4) + (1/8))

→ ((5/20) + (4/20)) + ((-6/8) + (1/8))

→ ((5 + 4)/20) + ((-6 + 1)/8)

→ (9/20) + (-5/8)

→ (18/40) + (-25/40)

→ (18 +(-25))/40

→ (18 - 25)/40

→ -7/40

Hence, the answer is -7/40.

User Kiran Sk
by
8.3k points
4 votes

Answer:

  • - 7/40

------------------------------

Given expression:

  • 1/4 + 1/5 + (-3/4 + 1/8)

Simplify it in below steps:

  • 1/4 + 1/5 + (-3/4 + 1/8) = Solve the parenthesis
  • 1/4 + 1/5 + (-6/8 + 1/8) = Bring to common denominator of 8
  • 1/4 + 1/5 + (-5/8) =
  • 1/4 + 1/5 - 5/8 = Open the parenthesis
  • 10/40 + 8/40 - 25/40 = Bring to common denominator of 40
  • (18 - 25) / 40 = Simplify
  • - 7/40 Answer

It doesn't match any given answer choices.

User Shlomi Fish
by
8.6k points

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