Question

please give this answer

Answer 1

7/10-(-2/5)=7/10+2/5
taking LCM
(7+4)/10=
11/10

Answer 2

12. 7/10 - (-2/5)

7/10 + 2/5 [ when - is multiplied by - it becomes +]

Lcm is 10

7/ 10 + 4/10 = 11/10


13. -8/14 x 7/2

= (-8 x 7)/(14 x 2)

= -2

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