Final answer:
Byron bought approximately 0.98 pounds more bananas than grapes after converting the weight of the grapes to a decimal and subtracting it from the weight of the bananas.
Step-by-step explanation:
To determine how many more pounds of bananas Byron bought than grapes, we need to compare the weights of the bananas and grapes. Byron bought 1.9 pounds of bananas and 11/12 pounds of grapes. To compare these, we should convert the fraction for grapes to a decimal. We divide 11 by 12 to get approximately 0.9167 pounds. Now we subtract the weight of the grapes from the weight of the bananas: 1.9 pounds - 0.9167 pounds ≈ 0.9833 pounds. Therefore, Byron bought approximately 0.98 pounds more bananas than grapes.