Question

(c)
Express
in standard form.
77/-91​

Answer 1

Answer:

Step-by-step explanation:

Standard form of a fraction

Given: the fraction 77 / - 91

To find: the standard form of  77 / - 91

Solution:

We must remember that, we call a fraction to be in standard form, when the hcf of the numerator and the denominator is 1.

Now,  77 /  91 = - 77 / 91, by multiplying both the numerator and the denominator by (- 1)

= (-7 × 11) / (9 × 11)

= - 7 / 9, which is in standard form because the hcf of 7 and 9 is 1.

Answer: standard form of  77 / - 91 is -7/9.