aspencocothumper aspencocothumper

19-05-2020
Mathematics

contestada

2/3 + (-5/7)

.........

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

19-05-2020

Answer:

-1/21

Step-by-step explanation:

2/3 + -5/7

Get a common denominator of 21

2/3 *7/7 = 14/21

-5/7*3/3 = -15/21

14/21 - 15/21 = -1/21

Answer Link

amna04352 amna04352

19-05-2020

Answer:

-1/21

Step-by-step explanation:

2/3 + (-5/7)

2/3 - 5/7

Lcm: 21

(2×7 - 5×3)/21

(14 - 15)/21

-1/21

Answer Link

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