Answer:
= -3/20 = -7 3/4 = -12 27/50
Step-by-step explanation:
For -3/20, we know that .1 is a tenth, so half of that, 0.05, must be a twentieth. -0.15 = -3 x 0.5, so it's -3/20.
For the second problem, we'll set the -7 aside for the mixed number. 0.25 is a quarter, and there's three of them (0.25 x 3 = 0.75), so it's 7 3/4
For the third problem, we again set the -12 aside for the mixed number. 0.54 is 54 one-hundreths, which is 54/100. we can reduce that by dividing both the numerator and denominator of the fraction by 2, and we get 27/50. Because 27 is prime, it cannot be reduced any further, the answer is -12 27/50.
