Question

1. estamate the sum

Answer 1

Step-by-step explanation:

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

$\frac{11}{15}=0.733$

$\frac{1}{8}=0.125\approx 0$

$\frac{11}{15}+\frac{1}{8}=0.733+0.125\approx 1$

The estimated sum is 1.

2. $\frac{3}{4} \times 7\frac{2}{17}$

$\frac{3}{4}=0.75$

$7\frac{2}{17}=\frac{121}{17}=7.1176$

$\frac{3}{4} \times 7\frac{2}{17}=0.75\times 7.1176=5.3382\approx 5$

3. $\frac{5}{6} + \frac{4}{9}$

$\frac{5\times 9+4\times 6}{6\times 9}$

$\frac{69}{54}=\frac{23}{18}$

$\frac{5}{6} + \frac{4}{9}=\frac{23}{18}$

Answer 2

Answer:

The sum for 11/15 + 1/8 = 103/120

The product for 4 3/4 * 7 2/17 = 33 55/68

The sum for 5/6 + 4/9 = 1 5/18

Hope that helps :)