Question

example 17. from rational numbers chapter class 7 maths book.​

Answer 1

Answer:

-1/35

Step-by-step explanation:

firstly take LCM of both the denominators

take LCM of 5 and 7 , which is 35

then write whole upon and write 35 as a denominator

then we know that , 5 divides 35 in 7 parts so multiply 7 x -3 = -21.

and 7 divides 35 in 5 parts so multilply 5 x 4 = 20.

then add both no.s we got

-21+20= -1

-1 is numerator and denominator is 35.

So. answer is -1/35

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