Round the fractions to the nearest whole number to find an estimate: 7 7/8÷ 2 1/5.
To find an estimate for 7 7/8 ÷ 2 1/5, we can round the fractions to the nearest whole number.
7 7/8 is already close to a whole number, so we can round it to 8.
2 1/5 is closer to 2 than to 3, so we round it to 2.
So the estimate for 7 7/8 ÷ 2 1/5 is 8 ÷ 2.
By dividing 8 by 2, we get 4.
Therefore, the estimate for 7 7/8 ÷ 2 1/5 is 4.