3 years ago

Becky tried to evaluate an expreisson step by step

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

6 0

Answer:

step 2

Step-by-step explanation:

1) so in step 2 Becky make 4/5-5/4=0

this is wrong, as we have to make common denominators first:

16/20-25/20=-9/20

so now, we got -9/20

-9/20+7=

2) make common denominators again

-9/20+140/20=131/20

this is the right answer Hope this helps!

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