To find one twelfth plus one fifteenth, first find a common denominator. The least common multiple of 12 and 15 is 60. Converting the fractions, one twelfth becomes 5/60 and one fifteenth becomes 4/60. Adding these gives 5/60 + 4/60 = 9/60, which simplifies to 3/20.
One fourth is three twelfths. So one twelfth plus three twelfths is four twelfths, which is also one third.
To divide seven fifteenths by one twelfth, you multiply seven fifteenths by the reciprocal of one twelfth. The reciprocal of one twelfth is twelve over one. So, (7/15) ÷ (1/12) becomes (7/15) × (12/1), which equals 84/15. Simplifying this fraction gives you 28/5 or 5.6.
Seven and one twelfth
1/12 + 1/12 = 2/12 or 1/6 in its simplest form
three and one sixth plus one and one twelfth = 39/123 1/6 = [(6 * 3)+1]/6 = (18+1)/6 = 19/619/6 + 1/12= (38 + 1)/12= 39/12
There are four twelfths. 4 out of 12 is the same as 1 out of 3. 4/12 = 1/3
One fourth is three twelfths. So one twelfth plus three twelfths is four twelfths, which is also one third.
One and one twelfth
Two twelfths. (1/12 + 1/12 = 2/12)
one third plus one fifth is eight fifteenth
5/12
Seven and one twelfth
one third
1/12 + 1/12 = 2/12 or 1/6 in its simplest form
seven and seven twelfth
the ratio of brightness is 16:1
7/12