Which of the following is a pair of equivalent fractions?

ten-twelfths and thirty forty-eighths

fourteen twenty-eighths and twenty-one thirty-fifths

sitwentieths and four-fifteenths

seven-eighths and twenty-eight thirty-seconds

Question

Which of the following is a pair of equivalent fractions?

ten-twelfths and thirty forty-eighths

fourteen twenty-eighths and twenty-one thirty-fifths

sitwentieths and four-fifteenths

seven-eighths and twenty-eight thirty-seconds

ranga · Answer

I will do the first one and you can follow a similar procedure for others.
10/12  and  30/48
To compare the two fractions make the denominator the same.
Multiply the top and bottom of first fraction by 4
10/12 = 40/48.   Compare this to the second fraction 30/48 and we can see they are not the same.