Answers

2015-04-10T10:56:25+05:30
28/-70
break 28 in its factor 2x2x7
also break 70 in its factor 2x5x7
2x2x7/-2x5x7=-2/5
After removing common multiplier of 28 and -70 we get -2/5
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2015-04-10T17:25:00+05:30
Consider the term 28/-70.
Here, H.C.F of the numerator and denominator  i.e. 28 and -70 is 14.
Therefore , after dividing them by 14 ,the term is:
(28/14)/(-70/14) simplified to
2/-5 .
Since there is only 1 -ve sign (an odd no. of -ve signs), The fraction stands -2/5 .
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