Algebra
posted by Ardis on .
please help me to figure out in algebra 2/34/5(11/15) +7/105/2 the answer is 6/5 and I do not know how to work this out

2 / 3  4 / 5  (  11 / 15 ) + 7 / 10  5 / 2 =
2 / 3  4 / 5 + 11 / 15 + 7 / 10  5 / 2
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Least Common factor = 30
2 / 3 = 20 / 30
4 / 5 = 4 * 6 / ( 5 * 6 ) = 24 / 30
11 / 15 = 2 * 11 / ( 2 * 15 ) = 22 / 30
7 / 10 = 3 * 7 / ( 3 * 10 ) = 21 / 30
5 / 2 = 15 * 5 / ( 15 * 2 ) = 75 / 30
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2 / 3  4 / 5 + 11 / 15 + 7 / 10  5 / 2 =
20 / 30  24 / 30 + 22 / 30 + 21 / 30  75 / 30 =
 36 / 30 =  6 * 6 / ( 6 * 5 ) =  6 / 5