Question

plz ans me it's helpful for me​

Answer 1

Answer:

pen,by

Step-by-step explanation:

19/3-21/5

= 95-63/15

=32/15

Answer 2

Answer: pencil of Rs. 19/3 costs more,  by Rs 28/15 more

Step-by-step explanation:

19/3 = (18+1)/3 = 18/3 +1/3 = 6+1/3

21/5 = (20+1)/5 = 20/5 +1/5 = 4 + 1/5

it is clear that 6 +1/3 is more than 4 +1/5. so pencil of Rs. 19/3 costs more.

the difference = 6 +1/3 - (4+ 1/5)

                        = 6-4 + 1/5 - 1/3

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

                       = 2 + (-2/15)

                       = (2*15 - 2)/15

                       = (30-2)/15 = 28/15

so pencil of Rs. 19/3 costs more by Rs 28/15.