Question

Express the- 7 / -8 is a rational number with denominator 40​

Answer 1

Answer:

-7/-8 = 35/40(- sign cut )

Step-by-step explanation:

-7×5/-8×5 {as 8×5=40}

=35/40

hope it will help u...

Answer 2

Answer:

35/40

Step-by-step explanation:

since (-7/-8)=7/8[both the signs cancel each other]

to express 7/8 with dr.40

check both the dr.

since 8*5=40

so to express the whole fraction

multiply the nr. also with 5

therefore the fraction will be

35/40