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

Answer 1

I believe it is C. about 1

Answer 2

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