Question

Evaluate 3 by 5 + 73 + of minus 2 by 5 + of minus 2 by 3 after rearranging

Answer 1

Answer:

Hi,

Given problem is,

3/5 + 7/3 + ( - 2/ 5 ) + ( - 2 / 3 )

= 3 / 5 + ( - 2 / 5 ) + 7 /3 + ( - 2 / 3 )

[ rearranged the like fractions at one place ]

= 3 / 5 - 2 / 5 + 7 / 3 - 2 / 3 [ since + × - = - ]

= ( 3 - 2 ) / 5 + ( 7 - 2 ) /3

= 1 / 5 + 5 / 3

LCM of 5 and 3 = 5 × 3 = 15

= ( 3 + 25 ) / 15

= 28 / 15

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Answer 2

Answer:

3/5 +7/3 + (-2/5) + (-2/3)

=3/5 + (-2/5) + 7/3 + (-2/3)

=3/5 -2/5 +7/3 -2/3

= (3-2) /5 + (7-2) /3

= 1/5 +5/3

LCM of 5 and 3 =5×3=15

= ( 3+25 ) / 15

= 28 / 15

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