Question

size of a tennis racket is 7 8/10 cm. Express the size as an improper fraction?

a) 79/10
b) 80/10
c) 78/10
d) 75/10​

Answer 1

Given:

The size of a tennis racket is 7 8/10 cm. Express the size as an improper fraction?

a) 79/10. b) 80/10. c) 78/10. d) 75/10

ANSWER: Option (c) 78/10

Step-by-Step explanation:

The size of a tennis racket is:

$7 \dfrac{8}{10}$

The above-given fraction is known mixed fraction.

7 = whole number

8 = Numerator

10 = Denominator

Changing mixed fraction into an improper fraction:

• To change the mixed fraction into an improper fraction, we need to multiply the denominator by the whole number and then add the numerator.
• Then write the denominator in its place.

$\dfrac{10 \times 7 + 8}{10}$

$\dfrac{78}{10}$

Hence, the required answer is an option (c) 78/10