Question

Express -5/8 as a rational number with denominator
(a) -32 (b) 40 (c) -56 (d) 72

Answer 1

Answer:

a) -32

Multiply both numerator and denominator by -4

= -5/8×-4/-4

=20/-32

b) 40

5/8 * -5/-5

= -25/-40

c) -56

Let the numerator be x and we know that denominator is -56

∴ 5/-8 = x/-5

-5/8 = -x/56

BY CROSS MULTIPLICATION

-5 × 56 = -8x

-5 × 56/-8 = x

x = 35/56

d) 72

Answer 2

Answer:

By cross multiplication x=35/56

Step-by-step explanation:

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