Sam had 4/5 yards of yarn. he used 3/8 of the yarn. how many yards of yarn did he use?

put your answer in lowest terms.

(a). 5/8
(b). 7/10
(c). 3/10
(d). 3/13

we know that

1) Sam had yards of yarn

2) Sam used of the yarn

so

To calculate how many yards of yarn he used

Multiply by

Simplify

Divide by both numerator and denominator

therefore

the answer is the option C

first one because it can't have a fraction in it

step-by-step explanation:

the answer is 21%.