12, 23, 34 and 45 as like fractions are 4060, 3060, 4560 and 4860 repectively.
False
L.C.M. of the denominators of the given fractions is 60.
So, inorder to make the denominators of 12, 23, 34 and 45 same, we multiply the numerator and the denominator of 12 by 30, numerator and the denominator of 23 by 20, numerator and the denominator of 34 by 15 and numerator and the denominator of 45 by 12.
That is, 1×302×30 = 3060, 2×203×20 = 4060, 3×154×15 = 4560 and 4×125×12 = 4860
Therefore, 12, 23, 34 and 45 as like fractions are 3060, 4060, 4560 and 4860.