First you have to multiply the numerator of the first fraction with the denominator of the second fraction, it gives you 9(1x9). Then, multiply the denominator of the first fraction with the numerator of the second fraction, it gives you 8(4x2). After that, multiply the denominator of the first fraction with the denominator of the second fraction, it gives you 18(2x9). Finally sum the first two answers you got, 8 and 9 = 17, and put this number (17) above the 18. So, the fraction will be 17/18 and this is less than 1 cause it would have to be 18/18 to be 1.
