Which statement best explains whether using a calculator or determining the solution by hand would be the most
efficient way to fully simplify the expression++-1?
O The sum of the first two fractions can easily be determined, but because the third fraction has a different
denominator, solving this using a calculator would most likely be more efficient.
O Adding and subtracting whole numbers and fractions is always a time-consuming process to complete by hand, so
solving this using a calculator would most likely be more efficient.
O The first calculation can be done quickly by hand, so solving this problem by hand would most likely be more
efficient.
O The denominators of the first two terms cancel each other out, so solving this problem by hand would most likely be
more efficient.