To find the exact difference, we first need to convert the mixed numbers into improper fractions:
14 7/15 = 14 + 7/15 = 14 * 15/15 + 7/15 = 210/15 + 7/15 = 217/15
7 1/3 = 7 + 1/3 = 7 * 3/3 + 1/3 = 21/3 + 1/3 = 22/3
Now we can subtract:
217/15 - 22/3 = (217*3)/(15*3) - (22*15)/(3*15) = 651/45 - 330/45 = (651-330)/45 = 321/45 = 7 6/45 or 7 2/15
Therefore, the exact difference is 7 2/15.
For the estimated difference, we can round the fractions to the nearest whole numbers:
14 7/15 is approximately 14 0/15 = 14
7 1/3 is approximately 7 0/3 = 7
Now we can subtract:
14 - 7 = 7
Therefore, the estimated difference is 7.
Subtract. Find an exact difference and an estimated difference.
14 7/15 - 7 1/3
1 answer
1 answer