George buys a pizza he eats 3-8 of pizza for lunch and 1-4 of pizza for dinner what fraction of pizza has George eaten

George has eaten 5 by 8 of the pizza

Here we have to Multiple 1 by 4 with 2 so it shares a common denominator with 3 by 8

Now  

since they share a denominator you can add the numerator together

So,  

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George has eaten 5/8 of the pizza

Step-by-step explanation:

Step 1: Multiple 1/4 by 2 so it shares a common denominator with 3/8

1.4 x 2 = 2/8

Step 2: Because they share a denominator you can add the numerator together

2/8 + 3/8 = 5/8

Therefore George has eaten 5/8(Five Eigths) of the pizza

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step-by-step explanation: