Question

sum of9/10,7/12,4/15​

Answer 1

Answer:

Step-by-step explanation:

9/10 = 0.9

7/12 = 0.58333333

4/15 =0.2666666667

If u add them

0.9 + 0.58333333+0.2666666667

=1.75

Answer 2

Answer: 7/4

Step-by-step explanation: find the lcm of 10,12 and 15...therefore lcm=60

now multiply both the numerator and the denominator with the same number to get 60=9*6 + 7*5 + 4*4  = 54+35+16

      10*6   12*5  15*4            60

= 105  = 21 = 7  

  60       12    4

hope it helps you