Step-by-step explanation:
Given the following fractions
(-6/11) (-3/4) (-3/13) (-1/4) (-7/9) (-1/2)
since we are required to match a fraction to a reasonable estimate we can match
1. (-6/11) and (-1/2) because a further reduction of (-6/11) is close to (-1/2)
2. (-3/4) and (-7/9) when we divide numerator and denominator by 2 the estimates are close
3. (-3/13) and (-1/4) when both numerator and denominator are divided by 3 the estimate is close to -1/4
