1. Holt CA Course 1 4-1 Estimating with Fractions 1. 5.2x = 127.92 2. = 64.2 3. 2.6 = Warm Up Solve. x = 24.6 x = 39.26 x = 263.22 x t 4.1 x 15.1

2. Holt CA Course 1 4-1 Estimating with Fractions You can also round fractions by comparing its numerators with its denominators.

3. Holt CA Course 1 4-1 Estimating with Fractions You can estimate products and quotients of mixed numbers by rounding to the nearest whole number. If the fraction in a mixed number is greater than or equal to, round the mixed number up to the next whole number. If the fraction is less than, round down to a whole number by dropping the fraction. 1212 1212

4. Holt CA Course 1 4-1 Estimating with Fractions Additional Example 3A: Estimating Products and Quotients Estimate each product or quotient. 3 7 = 21 Multiply. 2929 3 6 5656 3 2929 3 6 5656 7 Round each mixed number to the nearest whole number.

5. Holt CA Course 1 4-1 Estimating with Fractions Additional Example 3B: Estimating Products and Quotients Estimate each product or quotient. 14 ÷ 2 = 7 Divide. 4545 13 ÷ 2 1414 13 4545 14 2 1414 2 Round each mixed number to the nearest whole number.

6. Holt CA Course 1 4-1 Estimating with Fractions Check It Out! Example 3A Estimate each product or quotient. 8 3 = 24 Multiply. 2323 7 2 3434 7 2323 8 2 3434 3 Round each mixed number to the nearest whole number.

7. Holt CA Course 1 4-1 Estimating with Fractions Check It Out! Example 3B Estimate each product or quotient. 12 ÷ 3 = 4 Divide. 7878 11 ÷ 3 1313 11 7878 12 3 1313 3 Round each mixed number to the nearest whole number.

8. Holt CA Course 1 4-1 Estimating with Fractions Lesson Quiz Estimate each sum or difference. 1. The new show arena being built in Franklin County is 150 feet long and 110 feet wide. Estimate the difference between the length and width. 3434 1212 2. 5959 + 4545 3. 7878 – 3737 4. 9 3434 – 6 1515 5. 5 2 4 40 ft 1 1212 1212 12 Estimate each product or quotient. 7878 1616 6. 17 ÷ 3 6 5656 1313