giddykipper giddykipper

03-04-2020
Mathematics

contestada

what do you add to 3 6/7 to make 5

Respuesta :

Officialalehpeter Officialalehpeter

03-04-2020

Answer:

x=8/7

Step-by-step explanation:

Let the unknown be x

So 3 6/7 +x=5

27/7 + x=5

Lcm is 7

27+7x/7=5

Cross multiply

27+7x=7×5

27+7x=35

Substrate 27 from both sides

7x=8

Make x the subject of formula by dividing both sides by 7

x=8/7

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