Skip to content

Digital Transformation Pathfinder

Automatic Item Generation
References
Training
Sample Item Models

Tatsouka 2009

Posted byjaehwa September 5, 2020

What is the value of $5$ $\dfrac{3}{5}$ $-$ $\dfrac{2}{8}$?
A. $5\dfrac{7}{20}$ A. $5\dfrac{7}{20}$
B. $\dfrac{5}{13}$
C. $\dfrac{14}{13}$
D. $1$
E. $\dfrac{37}{20}$

1. $5$ $\dfrac{3}{5}$ $ - $ $\dfrac{2}{8}$
$ = \dfrac{28}{5}$ $ - $ $\dfrac{2}{8}$
$ = \dfrac{28\times 8}{5\times 8}- \dfrac{2\times 5}{8\times 5}$
$ = \dfrac{224}{40}-\dfrac{10}{40}$$=\dfrac{{224}-{10}}{40}$$=\dfrac{107}{20}$ $= 5\dfrac{7}{20}$ 2. No More Steps

Correct! Nice work!

Posted byjaehwaSeptember 5, 2020Posted inUncategorized

Post navigation

Previous Post Previous post:
Adding Two Fractions

Next Post Next post:
Rationals

CAFA Lab, Proudly powered by WordPress.