Question

I need help with this

Answer 1

Answer: 7/4 and  1 3/4

Step-by-step explanation:

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(4, 4) = 4. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 4 × 4 = 16. In the following intermediate step, it cannot further simplify the fraction result by canceling.

In other words - seventeen quarters minus ten quarters = seven quarters.

Answer 2

Answer:

C.   $\sf \dfrac{7}{4}$

D.  $\sf 1\dfrac{3}{4}$

Explanation:

$\hookrightarrow \sf 4\dfrac{1}{4}-2\dfrac{2}{4}$

$\hookrightarrow \ \sf \dfrac{17}{4}-\dfrac{10}{4}$

$\hookrightarrow \sf \dfrac{17-10}{4}$

$\hookrightarrow \ \sf \dfrac{7}{4}$

$\hookrightarrow \ \sf 1\dfrac{3}{4}$

$\hookrightarrow 1.75$