Matching QuantitiesVersión en línea Identify the quantities that combine to make zero. por Deborah Johnson Deborah_Johnson 1 Group 1 2 Group 2 3 Group 3 4 Group 4 5 Group 5 6 Group 6 7 Group 7 8 Group 8 9 Group 9 10 Group 10 0.5 -1/2 0.75 -6/8 -20 20 1/5 -0.20 -5/7 15/21 -2 2 6/2 -3 -5/4 1.2 7/8 -0.875 -0.25 1/4