Question

Simplify:
$(1\frac{2}{5}+2.6)-1\frac{3}{4}$

• A. 2.25
• B. 2.1
• C. 2.35
• D. 2.5

Answer 1

Answer:

A. 2.25

Convert the mixed numbers to improper fractions:

$1\frac{2}{5} = \frac{7}{5}$

$2.6 = \frac{26}{10} = \frac{13}{5}$

Now add:

$\frac{7}{5} + \frac{13}{5} = \frac{20}{5} = 4$

Convert the other mixed number:

$1\frac{3}{4} = \frac{7}{4}$

Now subtract:

$4 - \frac{7}{4} = \frac{16}{4} - \frac{7}{4} = \frac{9}{4}$

$\boxed{\frac{9}{4}}$

or as a mixed number:

$\boxed{2\frac{1}{4}}=2.25$