use benchmarks to estimate the sum 11/15 +1/8 A.about 1/2 B.about 3/4 C.about 1 D.about 1 1/2

Question

use benchmarks to estimate the sum 11/15 +1/8 A.about 1/2 B.about 3/4 C.about 1 D.about 1 1/2

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    0
    2021-09-10T18:20:37+00:00

    I believe it is C. about 1

    0
    2021-09-10T18:21:08+00:00

    Answer:

    about 1

    Step-by-step explanation:

    11/15 +1/8

    \frac{11}{15} +\frac{1}{8}

    To add two fractions, make the denominators same

    LCD is 15 times 8 = 120

    We need to get 120 in the denominator

    To get 120 in the denominator, multiply the first fraction by 8 and second fraction by 15

    \frac{11 \cdot 8}{15 \cdot 8} +\frac{1 \cdot 15}{8 \cdot 15}

    \frac{88}{120} +\frac{15}{120}

    Denominators are same . so we add the fractions

    \frac{103}{120}

    Its approximately close to 1

    Its about 1

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