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Unit Rates with Fractions Worksheet Answer Key – Grade 7

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Last updated: October 22, 2026 · Written by the Math Made Easy math teachers

Grade 7 Math Worksheet Answer Keys – Mathbot, the Math Made Easy robot coach, with free printable worksheet answer keys for Grade 7

Looking for an unit rates with fractions worksheet answer key? Then this answer key gives every step of the Grade 7 worksheet on Finding Unit Rates When Quantities Are Fractions. Each solution below shows the division, the multiplication by the reciprocal and the simplified result, with the final answer in bold. Compare every step with your own work and look for slips in reciprocals and units.

Standards: 7.RP.A.1 · Level: Grade 7

Problem 2 Hose Filling a Bucket

56 ÷ 29 = 56 × 92 = 4512 = 154.

Answer: 3 34 gallons per minute

Problem 3 Sugar per Batch

58 ÷ 14 = 58 × 4 = 208 = 52.

Answer: 2 12 cups per batch

Problem 4 Hiking Speed

910 ÷ 35 = 910 × 53 = 4530 = 32.

Check: 32 × 35 = 910.

Answer: 1 12 miles per hour

Problem 5 Price of Cashews

$6.75 ÷ 34 = $6.75 × 43 = $27.00 ÷ 3 = $9.00.

Check: 9 × 0.75 = 6.75.

Answer: $9.00 per pound

Problem 6 Toy Car Both Ways

(a) 35 ÷ 110 = 35 × 10 = 6 feet per second.

(b) 110 ÷ 35 = 110 × 53 = 530 = 16 second per foot.

Answer: 6 feet per second; 16 second per foot

Time (seconds)1/101Distance (feet)3/56
Both values are multiplied by 10.

Problem 7 Which Hiker Is Faster

A: 34 × 3 = 94 = 2 14 mph.

B: 23 × 4 = 83 = 2 23 mph.

2 23 > 2 14 because 812 > 312.

Answer: Hiker B is faster (2 23 mph vs. 2 14 mph)

Problem 8 Better Paint Buy

X: 12 ÷ 23 = 12 × 32 = $18.00 per gallon.

Y: 14.25 ÷ 34 = 14.25 × 43 = 57 ÷ 3 = $19.00 per gallon.

19 − 18 = 1.

Answer: Brand X costs $1.00 less per gallon

Problem 9 Conveyor Belt Units

Yards per minute: 56 × 73 = 3518.

1 yard = 3 feet, so 3518 × 3 = 356 = 5 56.

Answer: 5 56 feet per minute

Problem 10 Minutes to Hours

2 12 = 52. Miles per minute: 38 × 25 = 640 = 320.

Per hour: 320 × 60 = 9.

Answer: 9 miles per hour

Problem 11 Painting a Panel

Area = 34 × 23 = 612 = 12 square yard.

12 ÷ 16 = 12 × 6 = 3.

Answer: 3 square yards per hour

area = 1/2 sq yd3/4 yard2/3 yd
The area comes first, then the division by 1/6 hour.

Problem 12 Filling a Pool

(a) 16 ÷ 34 = 16 × 43 = 418 = 29 pool per hour.

(b) 1 ÷ 29 = 92 = 4 12 hours. (Also 34 × 6 = 184.)

Answer: 29 pool per hour; 4 12 hours

Problem 13 Distance at a Steady Pace

Rate: 56 × 4 = 206 = 103 mph.

Distance: 103 × 32 = 306 = 5.

Answer: 5 miles

Problem 14 Rate Table for a Model Train

Rate: 78 × 4 = 288 = 3 12 feet per minute.

12 min: 3 12 × 12 = 1 34 ft. 1 min: 3 12 ft. 2 12 min: 72 × 52 = 354 = 8 34 ft.

Answer: 3 12 ft per min; 1 34 ft, 3 12 ft, 8 34 ft

Problem 15 Mural Painting Time

Area = 52 × 65 = 3010 = 3 square feet.

Painted: 38 × 3 = 98 sq ft in 32 h.

(a) 98 ÷ 32 = 98 × 23 = 1824 = 34 sq ft per hour.

(b) Remaining: 3 − 98 = 158 sq ft. 158 ÷ 34 = 158 × 43 = 6024 = 52.

Answer: 34 square foot per hour; 2 12 more hours

Problem 16 Trail Schedule

Speed: 94 ÷ 34 = 94 × 43 = 3 mph.

Hiking time: 274 ÷ 3 = 94 = 2 14 h. Add lunch: 2 14 + 12 = 2 34 h = 2 h 45 min.

8:15 AM + 2 h 45 min = 11:00 AM.

Answer: 11:00 AM

Problem 17 Printer Race

A: 34 × 8 = 6 pages per minute. B: 52 × 2 = 5 pages per minute.

A needs 45 ÷ 6 = 7 12 min. B needs 45 ÷ 5 = 9 min.

9 − 7 12 = 1 12.

Answer: A: 7 12 min; B: 9 min; A finishes 1 12 minutes sooner

Problem 18 Storm Rainfall

(a) 58 × 2 = 108 = 1 14 in per hour.

(b) 154 ÷ 54 = 154 × 45 = 3 hours.

(c) 12 inches = 1 foot: 54 ÷ 12 = 548 foot per hour.

Answer: 1 14 in/h; 3 hours; 548 ft/h

Problem 19 Mixing Paint Tint

23 ÷ 34 = 23 × 43 = 89 cup per gallon.

89 × 92 = 7218 = 4.

Answer: 89 cup per gallon; 4 cups for 4 12 gallons

Problem 20 Three Athletes Compared

Leo: 32 × 4 = 6 mph.

Nia: 310 ÷ 3 = 110 mi per min; × 60 = 6 mph.

Omar: 58 ÷ 6 = 548 mi per min; × 60 = 30048 = 6 14 mph.

Answer: Omar (6 14 mph) is fastest; Leo and Nia tie at 6 mph