Question

Q.12. Evaluate:3/5+7/3-16/15-4/5+2/3​

Answer 1

Answer:

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

Answer 2

Answer:

$\frac{26}{15}$

step by step explanation :

$\frac{3}{5} + \frac{7}{3} - \frac{16}{15} - \frac{4}{5} + \frac{2}{3} \\ = \frac{9 + 35 - 16 - 12 + 10}{15} \\ = \frac{54 - 28}{15} \\ = \frac{26}{15}$