Question

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Answer 1

The solutions of (a), (b) and (c) are as follows:

(a)

• 4/5, -3/2, 0.25, 2/-3, -6/-5
• 0.8, -1.5, 0.25, -0.67, 1.2
• Therefore, the ascending order of the above is,
• -1.5, -0.67, 0.25, 0.8, 1.2
• The ascending order is -3/2, 2/-3, 0.25, 4/5, -6/-5

(b)

• 14/15 + 11/12 + (-5/9)
• taking the lcm of 15, 12 and 9, we have,
• 180 is the lcm of 15, 12 and 9, so we get,
• = [168 + 165 - 100] / 180
• = 233/180
• = (180 + 50)/180
• The result in mixed fraction is 1 50/180 = $1 \frac{50}{180}$

(c)

• [(4/5 × 8/20) + 9/25] - 11/25
• = [(4/5 × 2/5) + 9/25] - 11/25
• = [(8/25) + 9/25] - 11/25
• = 17/25 - 11/25
• = (17 - 11)/25
• = 6/25

Answer 2

Answer: -3/2 <2/-3 <0.25 <4/5 <6/7

Step-by-step explanation: 4/5=0.8; -3/2=-1.5;2/-3=-0.67 ; 6/5=1.2

-1.5<-0.67<0.25<0.8<1.2