QUESTION IMAGE
Question
estimate the sum using benchmarks.
\\(\frac{7}{8} + \frac{11}{12}\\)
1
\\(1\frac{1}{2}\\)
2
Step1: 估算第一个分数
$\frac{7}{8}$接近1,因为$\frac{7}{8}$与1的差为$1-\frac{7}{8}=\frac{1}{8}$,差距很小。
Step2: 估算第二个分数
$\frac{11}{12}$接近1,因为$1-\frac{11}{12}=\frac{1}{12}$,差距很小。
Step3: 计算估算的和
$1 + 1 = 2$
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