The LCD refers to whole numbers, not decimals.
x - 56 = 79 x - 56 + 56 = 79 + 56 x = 135
23
79 x 56 = 4424
56 + 79 = 135
The LCD is 56. The two have no common factors, so the LCD is their product, 7 x 8 =56
LCD(28, 56) = 56.
56, 79, 1318, 2327
168
LCD(9, 28) = 252
As 2 is a factor of 56, lcd(2, 56) = 56.
56/79=56=2x2x2x779=79No common prime factors56/79 is in simplest form
20 30 40 56