In fraction 3/4, denominator is 4. The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64,...
In fraction 7/15, the denominator is 15. The multiples of 15 are 15, 30, 45, 60, ....
So least common denominator of fraction 3/4 and 7/15 is 60.
Change the fractions by multiplication to obtain the common denominator (Least common denominator).
[tex]\frac{3}{4}\cdot\frac{15}{15}=\frac{45}{60}[/tex]
And,
[tex]\frac{7}{15}\cdot\frac{4}{4}=\frac{28}{60}[/tex]
So answer is,
3/4 = 45/60
7/15 = 28/60
