Answers

2015-01-09T12:39:00+05:30


(-7/10) + (-10/3)

= (-7/10)x 3 + (-10/3) x 10

= -21/30 - 10/30

= -31/30

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How did 3 came both in the second row?
2015-01-09T13:09:13+05:30
-7/10 + -10/3 be simplified as

(-7/10) + (-10/3)

multiplying with  3 on both sides

= (-7/10)x 3 + (-10/3) x 3

= -21/30 - 10/30

= -31/30

hence it is proved


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