Question

coopers science class placed some metal balls on a scale. they used a red ball that weighed 1/8 of a pound, a yellow ball that weighed 7/8 of a pound, a green ball that weighed 11/16 of a pound, a blue ball that weighed 1/16 of a pound, and a gray ball that weighed 1/8 of a pound. what was the total weight of the metal balls?

pounds

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Explanation:

Step1: Convert fractions to sixteenths

Red: $\frac{1}{8}=\frac{2}{16}$, Yellow: $\frac{7}{8}=\frac{14}{16}$, Gray: $\frac{1}{8}=\frac{2}{16}$
Green: $\frac{11}{16}$, Blue: $\frac{1}{16}$

Step2: Add all fractions

$\frac{2}{16}+\frac{14}{16}+\frac{11}{16}+\frac{1}{16}+\frac{2}{16}=\frac{2 + 14 + 11 + 1 + 2}{16}=\frac{30}{16}$

Step3: Simplify the fraction

$\frac{30}{16}=\frac{15}{8}=1\frac{7}{8}$

Answer:

$1\frac{7}{8}$ (ou $\frac{15}{8}$)