Question

plz answer this two questions
it's urgent
the chapter is Rational numbers​

Answer 1

Answer:

here is your answer

Answer 2

Answer:

a) 51/160

b) -2/27

Step-by-step explanation:

so first take out the LCM of 10 and 15. which is 30. now 1 by 10 + 7 by 15 so you have to make the denominator same so 1 by 10 into 3 so you have to multiply the numerator as well so it is going to be 3 by 30. you have to do same with the next number and the answer will come 14 by 30. just add them both so the answer will be 17 by 30. now 17 by 30 x so do the same with the next numbers also and it will be 17 by 30 into 9 by 16. and the final answer would be 51 by 160.

b) continue the same process and the answer is going to be -2 by 27