Question

add to the following questions ​

Answer 1

Answer:

HI HOPE THIS HELPS

(i)8x9/10+7x7/8

=8 x 10 + 9/9 + 7 x 8 + 7/8

=89/9+63/8

=89x8/9x8 + 63x9/8x9      [taking LCM of denominators 9 and 8 which is 72]

so now,

712/72 + 567/72

Answer = 1279/72

HOPE THIS HELPS

DO THE SAME FOR THE OTHER ONE TOO

Answer 2

• @ 89 /10 + 63/ 8 same the denominator so ,take a LCM =10,8 =LCM is 80 . 89 ×8 /10 ×8 = 712 /80 =+ 63 × 10 /8× 10 =630 /80 . =712 +630 /80 = 1342/80 = 671 / 40 answer ...

=65/12 + 67/10 take a L C M . 12,10

=LCM is 60 same the denominator .

=65 ×5/12×5=325/60. =+67×6/10×6=402/60.

= 325/60+402/60=727/60

answer is 727 /60