SOLUTION: Does the problem seventy five eighty fifths equals fifteen sixteenths use a proportion?

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Question 177964This question is from textbook foundations for algebra year 2 VOL.2
: Does the problem seventy five eighty fifths equals fifteen sixteenths use a proportion? This question is from textbook foundations for algebra year 2 VOL.2

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
75/86 versus 15/16
if they are equal then when we cross multiply we should get equal terms
:
75%2F86=15%2F16
:
86(15)=75(16)
:
1290=1200
:
NOPE,close but no cigar these are not equal fractions.
:
if you have equal fractions such as 5/10 and 1/2
:
1%2F2=5%2F10
:
2(5)=1(10)
:
10=10