DeaTutto
DeaTutto DeaTutto
  • 01-10-2020
  • Mathematics
contestada

-1/6 + ( -3/7) =

A. -25/42
B. -4/13
C. 11/42
D. 2/13

Respuesta :

jade24261 jade24261
  • 01-10-2020

Answer: the anwser is A

Step-by-step explanation:

I used a calculator lol

Answer Link
elainemarin2008
elainemarin2008 elainemarin2008
  • 01-10-2020

Answer:

C: 11/42

Step-by-step explanation:

-1/6 + (-3/7)

This can also be written as -1/6 + 3/7

Find the LCD: 42

Divide 42 by the original denominators: 42 / 6 = 7. 42 / 7 = 6

Multiply the numerators by the quotient: -1 x 7 = -7. 3 x 6 = 18

New equation: -7/42 + 18/42

Focus on the numerators: -7 + 18 = 11

Put it all together: 11/42

Answer Link

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